diff --git a/skeema/gradido_community/admin_errors.sql b/skeema/gradido_community/admin_errors.sql
index 877b1d7db..020b4078b 100644
--- a/skeema/gradido_community/admin_errors.sql
+++ b/skeema/gradido_community/admin_errors.sql
@@ -1,5 +1,5 @@
 CREATE TABLE `admin_errors` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `state_user_id` int(11) NOT NULL,
   `controller` varchar(255) NOT NULL,
   `action` varchar(255) NOT NULL,
diff --git a/skeema/gradido_community/community_profiles.sql b/skeema/gradido_community/community_profiles.sql
index ce77b6ead..07d475fdf 100644
--- a/skeema/gradido_community/community_profiles.sql
+++ b/skeema/gradido_community/community_profiles.sql
@@ -1,8 +1,9 @@
 CREATE TABLE `community_profiles` (
-  `id` INT UNSIGNED NOT NULL AUTO_INCREMENT,
-  `state_user_id` INT UNSIGNED NOT NULL,
-  `profile_img` LONGBLOB NULL,
-  `profile_desc` VARCHAR(2000) NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `state_user_id` int(10) unsigned NOT NULL,
+  `profile_img` longblob,
+  `profile_desc` varchar(2000) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
   PRIMARY KEY (`id`),
-  FOREIGN KEY (`state_user_id`) REFERENCES `state_users`(`id`)
-) ENGINE=InnoDB;
+  KEY `state_user_id` (`state_user_id`),
+  CONSTRAINT `community_profiles_ibfk_1` FOREIGN KEY (`state_user_id`) REFERENCES `state_users` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/operator_types.sql b/skeema/gradido_community/operator_types.sql
index ccf779b0b..35df5264e 100644
--- a/skeema/gradido_community/operator_types.sql
+++ b/skeema/gradido_community/operator_types.sql
@@ -1,6 +1,6 @@
 CREATE TABLE `operator_types` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `name` varchar(25) NOT NULL,
-  `text` varchar(255) NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `name` varchar(25) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `text` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/operators.sql b/skeema/gradido_community/operators.sql
index e995ff25e..74808be9b 100644
--- a/skeema/gradido_community/operators.sql
+++ b/skeema/gradido_community/operators.sql
@@ -1,8 +1,8 @@
 CREATE TABLE `operators` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `username` varchar(50) NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `username` varchar(50) COLLATE utf8mb4_unicode_ci NOT NULL,
   `user_pubkey` binary(32) NOT NULL,
-  `data_base64` varchar(255) NOT NULL,
+  `data_base64` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
   `modified` datetime NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/pending_transactions.sql b/skeema/gradido_community/pending_transactions.sql
index b3f94f38f..e3d6a4a08 100644
--- a/skeema/gradido_community/pending_transactions.sql
+++ b/skeema/gradido_community/pending_transactions.sql
@@ -1,10 +1,10 @@
 CREATE TABLE `pending_transactions` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transactionID` varchar(25) NOT NULL,
-  `service` varchar(20) NOT NULL,
-  `method` varchar(20) NOT NULL,
-  `h_server_id` int NOT NULL,
-  `timeout` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transactionID` varchar(25) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `service` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `method` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `h_server_id` int(11) NOT NULL,
+  `timeout` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`),
   UNIQUE KEY `transactionID` (`transactionID`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/roles.sql b/skeema/gradido_community/roles.sql
new file mode 100644
index 000000000..9fe9de710
--- /dev/null
+++ b/skeema/gradido_community/roles.sql
@@ -0,0 +1,5 @@
+CREATE TABLE `roles` (
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `title` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/server_users.sql b/skeema/gradido_community/server_users.sql
index 801eacef0..982a4bdc3 100644
--- a/skeema/gradido_community/server_users.sql
+++ b/skeema/gradido_community/server_users.sql
@@ -1,12 +1,12 @@
 CREATE TABLE `server_users` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `username` varchar(50) NOT NULL,
-  `password` varchar(255) NOT NULL,
-  `email` varchar(50) NOT NULL,
-  `role` varchar(20) NOT NULL DEFAULT 'admin',
-  `activated` tinyint NOT NULL DEFAULT 0,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `username` varchar(50) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `password` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `email` varchar(50) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `role` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'admin',
+  `activated` tinyint(4) NOT NULL DEFAULT '0',
   `last_login` datetime DEFAULT NULL,
   `created` datetime NOT NULL,
   `modified` datetime NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_balances.sql b/skeema/gradido_community/state_balances.sql
index 9afb308ac..c8b013d44 100644
--- a/skeema/gradido_community/state_balances.sql
+++ b/skeema/gradido_community/state_balances.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `state_balances` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `state_user_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `state_user_id` int(10) unsigned NOT NULL,
   `modified` datetime NOT NULL,
-  `amount` bigint NOT NULL,
+  `amount` bigint(20) NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_created.sql b/skeema/gradido_community/state_created.sql
index 05a2a8c97..5bc139594 100644
--- a/skeema/gradido_community/state_created.sql
+++ b/skeema/gradido_community/state_created.sql
@@ -1,11 +1,11 @@
 CREATE TABLE `state_created` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
-  `month` tinyint UNSIGNED NOT NULL,
-  `year` smallint UNSIGNED NOT NULL,
-  `state_user_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
+  `month` tinyint(3) unsigned NOT NULL,
+  `year` smallint(5) unsigned NOT NULL,
+  `state_user_id` int(10) unsigned NOT NULL,
   `created` datetime NOT NULL,
-  `short_ident_hash` int UNSIGNED NOT NULL,
+  `short_ident_hash` int(10) unsigned NOT NULL,
   PRIMARY KEY (`id`),
   KEY `short_ident_hash` (`short_ident_hash`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_errors.sql b/skeema/gradido_community/state_errors.sql
index 141e97562..8088f6ed2 100644
--- a/skeema/gradido_community/state_errors.sql
+++ b/skeema/gradido_community/state_errors.sql
@@ -1,8 +1,8 @@
 CREATE TABLE `state_errors` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `state_user_id` int UNSIGNED NOT NULL,
-  `transaction_type_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `state_user_id` int(10) unsigned NOT NULL,
+  `transaction_type_id` int(10) unsigned NOT NULL,
   `created` datetime NOT NULL,
-  `message_json` text NOT NULL,
+  `message_json` text COLLATE utf8mb4_unicode_ci NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_group_addresses.sql b/skeema/gradido_community/state_group_addresses.sql
index 38e8c36a8..1d256f3e0 100644
--- a/skeema/gradido_community/state_group_addresses.sql
+++ b/skeema/gradido_community/state_group_addresses.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `state_group_addresses` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `group_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `group_id` int(10) unsigned NOT NULL,
   `public_key` binary(32) NOT NULL,
-  `address_type_id` int UNSIGNED NOT NULL,
+  `address_type_id` int(10) unsigned NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_group_relationships.sql b/skeema/gradido_community/state_group_relationships.sql
index 19f7f5752..d2eecbfc0 100644
--- a/skeema/gradido_community/state_group_relationships.sql
+++ b/skeema/gradido_community/state_group_relationships.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `state_group_relationships` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `group1_id` int UNSIGNED NOT NULL,
-  `group2_id` int UNSIGNED NOT NULL,
-  `state_relationship_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `group1_id` int(10) unsigned NOT NULL,
+  `group2_id` int(10) unsigned NOT NULL,
+  `state_relationship_id` int(10) unsigned NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_groups.sql b/skeema/gradido_community/state_groups.sql
index 1ac95ec6c..30a810a19 100644
--- a/skeema/gradido_community/state_groups.sql
+++ b/skeema/gradido_community/state_groups.sql
@@ -1,8 +1,8 @@
 CREATE TABLE `state_groups` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `index_id` varbinary(64) NOT NULL,
-  `name` varchar(50) NOT NULL,
+  `name` varchar(50) COLLATE utf8mb4_unicode_ci NOT NULL,
   `root_public_key` binary(32) NOT NULL,
-  `user_count` smallint UNSIGNED NOT NULL DEFAULT 0,
+  `user_count` smallint(5) unsigned NOT NULL DEFAULT '0',
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_relationship_types.sql b/skeema/gradido_community/state_relationship_types.sql
index 99c428afd..fd901b8ac 100644
--- a/skeema/gradido_community/state_relationship_types.sql
+++ b/skeema/gradido_community/state_relationship_types.sql
@@ -1,6 +1,6 @@
 CREATE TABLE `state_relationship_types` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `name` varchar(25) NOT NULL,
-  `text` varchar(255) DEFAULT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `name` varchar(25) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `text` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_user_roles.sql b/skeema/gradido_community/state_user_roles.sql
new file mode 100644
index 000000000..207c2de63
--- /dev/null
+++ b/skeema/gradido_community/state_user_roles.sql
@@ -0,0 +1,6 @@
+CREATE TABLE `state_user_roles` (
+  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
+  `state_user_id` int(11) NOT NULL,
+  `role_id` int(11) NOT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/state_users.sql b/skeema/gradido_community/state_users.sql
index ca1f4c022..706fa699e 100644
--- a/skeema/gradido_community/state_users.sql
+++ b/skeema/gradido_community/state_users.sql
@@ -1,13 +1,13 @@
 CREATE TABLE `state_users` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `index_id` smallint NOT NULL DEFAULT 0,
-  `group_id` int UNSIGNED NOT NULL DEFAULT 0,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `index_id` smallint(6) NOT NULL DEFAULT '0',
+  `group_id` int(10) unsigned NOT NULL DEFAULT '0',
   `public_key` binary(32) NOT NULL,
-  `email` varchar(255) DEFAULT NULL,
-  `first_name` varchar(255) DEFAULT NULL,
-  `last_name` varchar(255) DEFAULT NULL,
-  `username` varchar(255) DEFAULT NULL,
-  `disabled` tinyint DEFAULT 0,
+  `email` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `first_name` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `last_name` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `username` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+  `disabled` tinyint(4) DEFAULT '0',
   PRIMARY KEY (`id`),
   UNIQUE KEY `public_key` (`public_key`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_creations.sql b/skeema/gradido_community/transaction_creations.sql
index 0fcb92582..a2ff37539 100644
--- a/skeema/gradido_community/transaction_creations.sql
+++ b/skeema/gradido_community/transaction_creations.sql
@@ -1,9 +1,9 @@
 CREATE TABLE `transaction_creations` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
-  `state_user_id` int UNSIGNED NOT NULL,
-  `amount` bigint NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
+  `state_user_id` int(10) unsigned NOT NULL,
+  `amount` bigint(20) NOT NULL,
   `ident_hash` binary(32) NOT NULL,
   `target_date` timestamp NULL DEFAULT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_group_addaddress.sql b/skeema/gradido_community/transaction_group_addaddress.sql
index 1c6fe826c..dceac273c 100644
--- a/skeema/gradido_community/transaction_group_addaddress.sql
+++ b/skeema/gradido_community/transaction_group_addaddress.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `transaction_group_addaddress` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
-  `address_type_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
+  `address_type_id` int(10) unsigned NOT NULL,
   `public_key` binary(32) NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_group_allowtrades.sql b/skeema/gradido_community/transaction_group_allowtrades.sql
index e2c299b34..923e0d5d0 100644
--- a/skeema/gradido_community/transaction_group_allowtrades.sql
+++ b/skeema/gradido_community/transaction_group_allowtrades.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `transaction_group_allowtrades` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
   `remote_group_id` varbinary(64) NOT NULL,
-  `allow` tinyint NOT NULL DEFAULT 0,
+  `allow` tinyint(4) NOT NULL DEFAULT '0',
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_group_creates.sql b/skeema/gradido_community/transaction_group_creates.sql
index afb8caf88..b5d7629b4 100644
--- a/skeema/gradido_community/transaction_group_creates.sql
+++ b/skeema/gradido_community/transaction_group_creates.sql
@@ -1,8 +1,8 @@
 CREATE TABLE `transaction_group_creates` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
   `group_public_key` binary(32) NOT NULL,
-  `group_id` varchar(64) NOT NULL,
-  `name` varchar(64) NOT NULL,
+  `group_id` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `name` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_send_coins.sql b/skeema/gradido_community/transaction_send_coins.sql
index d55d57b51..f57a2175e 100644
--- a/skeema/gradido_community/transaction_send_coins.sql
+++ b/skeema/gradido_community/transaction_send_coins.sql
@@ -1,10 +1,10 @@
 CREATE TABLE `transaction_send_coins` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
-  `state_user_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
+  `state_user_id` int(10) unsigned NOT NULL,
   `receiver_public_key` binary(32) NOT NULL,
-  `receiver_user_id` int UNSIGNED NOT NULL,
-  `amount` bigint NOT NULL,
-  `sender_final_balance` bigint NOT NULL,
+  `receiver_user_id` int(10) unsigned NOT NULL,
+  `amount` bigint(20) NOT NULL,
+  `sender_final_balance` bigint(20) NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_signatures.sql b/skeema/gradido_community/transaction_signatures.sql
index 2e8507c23..0c13b77da 100644
--- a/skeema/gradido_community/transaction_signatures.sql
+++ b/skeema/gradido_community/transaction_signatures.sql
@@ -1,7 +1,7 @@
 CREATE TABLE `transaction_signatures` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `transaction_id` int UNSIGNED NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `transaction_id` int(10) unsigned NOT NULL,
   `signature` binary(64) NOT NULL,
   `pubkey` binary(32) NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transaction_types.sql b/skeema/gradido_community/transaction_types.sql
index 4d1c13b55..87492e1fe 100644
--- a/skeema/gradido_community/transaction_types.sql
+++ b/skeema/gradido_community/transaction_types.sql
@@ -1,6 +1,6 @@
 CREATE TABLE `transaction_types` (
-  `id` int UNSIGNED NOT NULL AUTO_INCREMENT,
-  `name` varchar(24) NOT NULL,
-  `text` varchar(255) NOT NULL,
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
+  `name` varchar(24) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `text` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/skeema/gradido_community/transactions.sql b/skeema/gradido_community/transactions.sql
index c6072d20c..0e8c00ce6 100644
--- a/skeema/gradido_community/transactions.sql
+++ b/skeema/gradido_community/transactions.sql
@@ -1,9 +1,9 @@
 CREATE TABLE `transactions` (
-  `id` bigint UNSIGNED NOT NULL AUTO_INCREMENT,
-  `state_group_id` int UNSIGNED DEFAULT NULL,
-  `transaction_type_id` int UNSIGNED NOT NULL,
+  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
+  `state_group_id` int(10) unsigned DEFAULT NULL,
+  `transaction_type_id` int(10) unsigned NOT NULL,
   `tx_hash` binary(32) DEFAULT NULL,
-  `memo` varchar(255) NOT NULL,
-  `received` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
+  `memo` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
+  `received` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB;
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
diff --git a/src/Controller/JsonRequestHandlerController.php b/src/Controller/JsonRequestHandlerController.php
index 89d07a93f..f72d5d947 100644
--- a/src/Controller/JsonRequestHandlerController.php
+++ b/src/Controller/JsonRequestHandlerController.php
@@ -58,11 +58,29 @@ class JsonRequestHandlerController extends AppController {
             case 'checkUser': return $this->checkUser($jsonData->email, $jsonData->last_name);
             case 'getUsers' : return $this->getUsers($jsonData->page, $jsonData->limit);
             case 'getUserBalance': return $this->getUserBalance($jsonData->email, $jsonData->last_name);
+            case 'errorInTransaction': return $this->errorInTransaction($jsonData->created, $jsonData->transactionGenericHash, $jsonData->error, $jsonData->errorMessage);
           }
           return $this->returnJson(['state' => 'error', 'msg' => 'unknown method for post', 'details' => $method]);
         }
         return $this->returnJson(['state' => 'error', 'msg' => 'no post or get']);
     }
+    
+    //! \param $transactionCreated creation of transaction in timestamp in seconds
+    //!        -1 if transaction couldn't decode
+    //! \param $transactionBodyBase64Sha256 generic hash from transaction body serialized and converted to base64 
+    //!        using sodium_crypto_generichash to calculate
+    //         hash also in base64 format
+    //! \param $error short error name in user language
+    //! \param $errorDetails more detailed error message in user language 
+    private function errorInTransaction($transactionCreated, $transactionBodyBase64GenericHash, $error, $errorDetails) {
+      /*
+       * payload.set("created", created);
+       * payload.set("id", task_model->getID());
+       * payload.set("public_key", user_model->getPublicKeyHex());
+       * payload.set("error", error);
+       * payload.set("errorMessage", errorDetails);
+       */
+    }
   
     private function putTransaction($transactionBase64) {
       $transaction = new Transaction($transactionBase64);
diff --git a/src/Template/Pages/visitor.ctp b/src/Template/Pages/visitor.ctp
new file mode 100644
index 000000000..e6956c97c
--- /dev/null
+++ b/src/Template/Pages/visitor.ctp
@@ -0,0 +1,16 @@
+<?php $this->layout = false;?><!DOCTYPE html>
+<!--
+To change this license header, choose License Headers in Project Properties.
+To change this template file, choose Tools | Templates
+and open the template in the editor.
+-->
+<html>
+  <head>
+    <title>Visitor Page</title>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  </head>
+  <body>
+    <div>Info Page for Visitor to learn about group before try to enter or connect (befriend)</div>
+  </body>
+</html>