diff --git a/lib/libraries/TeamSpeak3/Helper/Char.php b/lib/libraries/TeamSpeak3/Helper/Char.php
index 1159a1a..c1c04c3 100644
--- a/lib/libraries/TeamSpeak3/Helper/Char.php
+++ b/lib/libraries/TeamSpeak3/Helper/Char.php
@@ -182,7 +182,7 @@ class TeamSpeak3_Helper_Char
    */
   public function toUnicode()
   {
-    $h = ord($this->char{0});
+    $h = ord($this->char[0]);
 
     if($h <= 0x7F)
     {
@@ -194,15 +194,15 @@ class TeamSpeak3_Helper_Char
     }
     else if($h <= 0xDF)
     {
-      return ($h & 0x1F) << 6 | (ord($this->char{1}) & 0x3F);
+      return ($h & 0x1F) << 6 | (ord($this->char[1]) & 0x3F);
     }
     else if($h <= 0xEF)
     {
-      return ($h & 0x0F) << 12 | (ord($this->char{1}) & 0x3F) << 6 | (ord($this->char{2}) & 0x3F);
+      return ($h & 0x0F) << 12 | (ord($this->char[1]) & 0x3F) << 6 | (ord($this->char[2]) & 0x3F);
     }
     else if($h <= 0xF4)
     {
-      return ($h & 0x0F) << 18 | (ord($this->char{1}) & 0x3F) << 12 | (ord($this->char{2}) & 0x3F) << 6 | (ord($this->char{3}) & 0x3F);
+      return ($h & 0x0F) << 18 | (ord($this->char[1]) & 0x3F) << 12 | (ord($this->char[2]) & 0x3F) << 6 | (ord($this->char[3]) & 0x3F);
     }
     else
     {
diff --git a/lib/libraries/TeamSpeak3/Helper/Crypt.php b/lib/libraries/TeamSpeak3/Helper/Crypt.php
index ad361fb..a5e71fd 100644
--- a/lib/libraries/TeamSpeak3/Helper/Crypt.php
+++ b/lib/libraries/TeamSpeak3/Helper/Crypt.php
@@ -175,7 +175,7 @@ class TeamSpeak3_Helper_Crypt
       $data = 0;
       for($j = 4; $j > 0; $j--)
       {
-        $data = $data << 8 | ord($passphrase{$k});
+        $data = $data << 8 | ord($passphrase[$k]);
         $k = ($k+1) % $length;
       }
       $this->p[$i] ^= $data;
diff --git a/lib/libraries/TeamSpeak3/Helper/String.php b/lib/libraries/TeamSpeak3/Helper/String.php
index 2164b4d..b71f7e4 100644
--- a/lib/libraries/TeamSpeak3/Helper/String.php
+++ b/lib/libraries/TeamSpeak3/Helper/String.php
@@ -472,7 +472,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   {
     if(!$this->isUtf8())
     {
-      $this->string = utf8_encode($this->string);
+      $this->string = mb_convert_encoding($this->string, 'UTF-8', 'ISO-8859-1'); //utf8_encode($this->string);
     }
 
     return $this;
@@ -550,7 +550,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
     $utf8_accents = array(
       "à" => "a",
       "ô" => "o",
-      "Ä?" => "d",
+      "�?" => "d",
       "ḟ" => "f",
       "ë" => "e",
       "Å¡" => "s",
@@ -560,9 +560,9 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "Å™" => "r",
       "È›" => "t",
       "ň" => "n",
-      "Ä?" => "a",
+      "�?" => "a",
       "Ä·" => "k",
-      "Å?" => "s",
+      "�?" => "s",
       "ỳ" => "y",
       "ņ" => "n",
       "ĺ" => "l",
@@ -573,7 +573,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "Ä›" => "e",
       "é" => "e",
       "ç" => "c",
-      "�" => "w",
+      "�?" => "w",
       "Ä‹" => "c",
       "õ" => "o",
       "ṡ" => "s",
@@ -591,7 +591,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "ŵ" => "w",
       "ṫ" => "t",
       "Å«" => "u",
-      "Ä?" => "c",
+      "�?" => "c",
       "ö" => "oe",
       "è" => "e",
       "Å·" => "y",
@@ -622,7 +622,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "ñ" => "n",
       "Å„" => "n",
       "Ä¥" => "h",
-      "Ä?" => "g",
+      "�?" => "g",
       "Ä‘" => "d",
       "ĵ" => "j",
       "ÿ" => "y",
@@ -639,8 +639,8 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "Ä«" => "i",
       "ã" => "a",
       "Ä¡" => "g",
-      "á¹?" => "m",
-      "Å?" => "o",
+      "�?" => "m",
+      "�?" => "o",
       "Ä©" => "i",
       "ù" => "u",
       "į" => "i",
@@ -700,7 +700,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "È" => "E",
       "Ŷ" => "Y",
       "Ä„" => "A",
-      "Å?" => "L",
+      "�?" => "L",
       "Ų" => "U",
       "Å®" => "U",
       "Åž" => "S",
@@ -712,12 +712,12 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "Ḃ" => "B",
       "Ã…" => "A",
       "Ì" => "I",
-      "Ã?" => "I",
+      "�?" => "I",
       "Ḋ" => "D",
       "Ť" => "T",
       "Å–" => "R",
       "Ä" => "Ae",
-      "Ã?" => "I",
+      "�?" => "I",
       "Å”" => "R",
       "Ê" => "E",
       "Ü" => "Ue",
@@ -727,15 +727,15 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "Ń" => "N",
       "Ĥ" => "H",
       "Ĝ" => "G",
-      "Ä?" => "D",
+      "�?" => "D",
       "Ä´" => "J",
       "Ÿ" => "Y",
       "Ũ" => "U",
       "Ŭ" => "U",
       "Ư" => "U",
       "Å¢" => "T",
-      "Ã?" => "Y",
-      "Å?" => "O",
+      "�?" => "Y",
+      "�?" => "O",
       "Â" => "A",
       "Ľ" => "L",
       "Ẅ" => "W",
@@ -749,10 +749,10 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
       "Ù" => "U",
       "Ä®" => "I",
       "Ź" => "Z",
-      "Ã?" => "A",
+      "�?" => "A",
       "Û" => "U",
       "Þ" => "Th",
-      "Ã?" => "Dh",
+      "�?" => "Dh",
       "Æ" => "Ae",
       "Ä”" => "E",
       "Å’" => "Oe",
@@ -856,7 +856,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function count()
+  public function count(): int
   {
     return strlen($this->string);
   }
@@ -864,7 +864,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function rewind()
+  public function rewind(): void
   {
     $this->position = 0;
   }
@@ -872,7 +872,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function valid()
+  public function valid(): bool
   {
     return $this->position < $this->count();
   }
@@ -880,7 +880,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function key()
+  public function key(): mixed
   {
     return $this->position;
   }
@@ -888,15 +888,15 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function current()
+  public function current(): mixed
   {
-    return new TeamSpeak3_Helper_Char($this->string{$this->position});
+    return new TeamSpeak3_Helper_Char($this->string[$this->position]);
   }
 
   /**
    * @ignore
    */
-  public function next()
+  public function next(): void
   {
     $this->position++;
   }
@@ -904,7 +904,7 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function offsetExists($offset)
+  public function offsetExists(mixed $offset) : bool
   {
     return ($offset < strlen($this->string)) ? TRUE : FALSE;
   }
@@ -912,25 +912,25 @@ class TeamSpeak3_Helper_String implements ArrayAccess, Iterator, Countable
   /**
    * @ignore
    */
-  public function offsetGet($offset)
+  public function offsetGet(mixed $offset): mixed
   {
-    return ($this->offsetExists($offset)) ? new TeamSpeak3_Helper_Char($this->string{$offset}) : null;
+    return ($this->offsetExists($offset)) ? new TeamSpeak3_Helper_Char($this->string[$offset]) : null;
   }
 
   /**
    * @ignore
    */
-  public function offsetSet($offset, $value)
+  public function offsetSet(mixed $offset, mixed $value): void
   {
     if(!$this->offsetExists($offset)) return;
 
-    $this->string{$offset} = strval($value);
+    $this->string[$offset] = strval($value);
   }
 
   /**
    * @ignore
    */
-  public function offsetUnset($offset)
+  public function offsetUnset(mixed $offset): void
   {
     if(!$this->offsetExists($offset)) return;
 
diff --git a/lib/libraries/TeamSpeak3/Node/Abstract.php b/lib/libraries/TeamSpeak3/Node/Abstract.php
index b2ab372..573ea3a 100644
--- a/lib/libraries/TeamSpeak3/Node/Abstract.php
+++ b/lib/libraries/TeamSpeak3/Node/Abstract.php
@@ -473,7 +473,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function count()
+  public function count(): int
   {
     $this->verifyNodeList();
 
@@ -483,7 +483,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function current()
+  public function current(): mixed
   {
     $this->verifyNodeList();
 
@@ -493,7 +493,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function getChildren()
+  public function getChildren(): ?RecursiveIterator
   {
     $this->verifyNodeList();
 
@@ -503,7 +503,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function hasChildren()
+  public function hasChildren(): bool
   {
     $this->verifyNodeList();
 
@@ -523,7 +523,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function key()
+  public function key(): mixed
   {
     $this->verifyNodeList();
 
@@ -533,7 +533,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function valid()
+  public function valid(): bool
   {
     $this->verifyNodeList();
 
@@ -543,27 +543,29 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function next()
+  public function next(): void
   {
     $this->verifyNodeList();
 
-    return next($this->nodeList);
+    //return next($this->nodeList);
+    next($this->nodeList);
   }
 
   /**
    * @ignore
    */
-  public function rewind()
+  public function rewind(): void
   {
     $this->verifyNodeList();
 
-    return reset($this->nodeList);
+    //return reset($this->nodeList);
+    reset($this->nodeList);
   }
 
   /**
    * @ignore
    */
-  public function offsetExists($offset)
+  public function offsetExists(mixed $offset): bool
   {
     return array_key_exists((string) $offset, $this->nodeInfo) ? TRUE : FALSE;
   }
@@ -571,7 +573,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function offsetGet($offset)
+  public function offsetGet(mixed $offset): mixed
   {
     if(!$this->offsetExists($offset))
     {
@@ -589,11 +591,12 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function offsetSet($offset, $value)
+  public function offsetSet(mixed $offset, mixed $value): void
   {
     if(method_exists($this, "modify"))
     {
-      return $this->modify(array((string) $offset => $value));
+      //return $this->modify(array((string) $offset => $value));
+      $this->modify(array((string) $offset => $value));
     }
 
     throw new TeamSpeak3_Node_Exception("node '" . get_class($this) . "' is read only");
@@ -602,7 +605,7 @@ abstract class TeamSpeak3_Node_Abstract implements RecursiveIterator, ArrayAcces
   /**
    * @ignore
    */
-  public function offsetUnset($offset)
+  public function offsetUnset(mixed $offset): void
   {
     unset($this->nodeInfo[(string) $offset]);
   }
diff --git a/lib/libraries/TeamSpeak3/Node/Host.php b/lib/libraries/TeamSpeak3/Node/Host.php
index c12f000..90f442d 100644
--- a/lib/libraries/TeamSpeak3/Node/Host.php
+++ b/lib/libraries/TeamSpeak3/Node/Host.php
@@ -554,7 +554,7 @@ class TeamSpeak3_Node_Host extends TeamSpeak3_Node_Abstract
       $permtree[$val]["permcatid"]      = $val;
       $permtree[$val]["permcathex"]     = "0x" . dechex($val);
       $permtree[$val]["permcatname"]    = TeamSpeak3_Helper_String::factory(TeamSpeak3_Helper_Convert::permissionCategory($val));
-      $permtree[$val]["permcatparent"]  = $permtree[$val]["permcathex"]{3} == 0 ? 0 : hexdec($permtree[$val]["permcathex"]{2} . 0);
+      $permtree[$val]["permcatparent"]  = $permtree[$val]["permcathex"][3] == 0 ? 0 : hexdec($permtree[$val]["permcathex"][2] . 0);
       $permtree[$val]["permcatchilren"] = 0;
       $permtree[$val]["permcatcount"]   = 0;
 
diff --git a/lib/libraries/TeamSpeak3/Node/Server.php b/lib/libraries/TeamSpeak3/Node/Server.php
index 5dae154..fa63bff 100644
--- a/lib/libraries/TeamSpeak3/Node/Server.php
+++ b/lib/libraries/TeamSpeak3/Node/Server.php
@@ -1976,7 +1976,7 @@ class TeamSpeak3_Node_Server extends TeamSpeak3_Node_Abstract
    *
    * @deprecated
    */
-  public function tokenCreate($type = TeamSpeak3::TOKEN_SERVERGROUP, $id1, $id2 = 0, $description = null, $customset = null)
+  public function tokenCreate($type = TeamSpeak3::TOKEN_SERVERGROUP, $id1 = 0, $id2 = 0, $description = null, $customset = null)
   {
     return $this->privilegeKeyCreate($type, $id1, $id2, $description, $customset);
   }
@@ -1991,7 +1991,7 @@ class TeamSpeak3_Node_Server extends TeamSpeak3_Node_Abstract
    * @param  string  $customset
    * @return TeamSpeak3_Helper_String
    */
-  public function privilegeKeyCreate($type = TeamSpeak3::TOKEN_SERVERGROUP, $id1, $id2 = 0, $description = null, $customset = null)
+  public function privilegeKeyCreate($type = TeamSpeak3::TOKEN_SERVERGROUP, $id1 = 0, $id2 = 0, $description = null, $customset = null)
   {
     $token = $this->execute("privilegekeyadd", array("tokentype" => $type, "tokenid1" => $id1, "tokenid2" => $id2, "tokendescription" => $description, "tokencustomset" => $customset))->toList();
 
@@ -2269,7 +2269,7 @@ class TeamSpeak3_Node_Server extends TeamSpeak3_Node_Abstract
   {
     $this->getParent()->serverDelete($this->getId());
 
-    unset($this);
+    // unset($this);
   }
 
   /**
diff --git a/lib_ts3.php b/lib_ts3.php
index c6ebe60..04e1f17 100644
--- a/lib_ts3.php
+++ b/lib_ts3.php
@@ -5,7 +5,6 @@ class lib_ts3 extends \LIB\lib_php{
         return self::class;}
     public static function php_autoload(){
         require_once dirname(__FILE__).'/lib/libraries/TeamSpeak3/TeamSpeak3.php';
-        //\TeamSpeak3::autoload('abc');
         \SYSTEM\autoload::registerFunc('TeamSpeak3::autoload');
         return true;}
     public static function version(){