diff --git a/src/Client.php b/src/Client.php
index 62f7c33..5959146 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -23,10 +23,10 @@ class Client
 
     public static function getInstance(): Client
     {
-        if (empty(static::$self)) {
-            static::$self = new static();
+        if (empty(self::$self)) {
+            self::$self = new static();
         }
-        return static::$self;
+        return self::$self;
     }
 
     public function connect(array $sessionFiles)
diff --git a/src/Config.php b/src/Config.php
index 27d2ad7..d2e4845 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -11,11 +11,11 @@ class Config
 
     public static function getInstance(): Config
     {
-        if (null === static::$instance) {
-            static::$instance = new static();
+        if (null === self::$instance) {
+            self::$instance = new static();
         }
 
-        return static::$instance;
+        return self::$instance;
     }
 
     /**
diff --git a/src/EventObservers/EventHandler.php b/src/EventObservers/EventHandler.php
index 7a045d9..9f3565a 100644
--- a/src/EventObservers/EventHandler.php
+++ b/src/EventObservers/EventHandler.php
@@ -12,8 +12,8 @@ class EventHandler extends \danog\MadelineProto\EventHandler
     public function onStart()
     {
         $this->sessionName = Files::getSessionName($this->wrapper->getSession()->getSessionPath());
-        if (empty(static::$instances[$this->sessionName])) {
-            static::$instances[$this->sessionName] = true;
+        if (empty(self::$instances[$this->sessionName])) {
+            self::$instances[$this->sessionName] = true;
             warning("Event observer CONSTRUCTED: {$this->sessionName}");
         }
     }
@@ -23,7 +23,7 @@ class EventHandler extends \danog\MadelineProto\EventHandler
         if (empty($this->sessionName)) {
             return;
         }
-        unset(static::$instances[$this->sessionName]);
+        unset(self::$instances[$this->sessionName]);
         warning("Event observer DESTRUCTED: {$this->sessionName}");
     }
 
diff --git a/src/EventObservers/EventObserver.php b/src/EventObservers/EventObserver.php
index 47b42bc..70a2112 100644
--- a/src/EventObservers/EventObserver.php
+++ b/src/EventObservers/EventObserver.php
@@ -18,7 +18,7 @@ class EventObserver
 
     public static function notify(array $update, string $sessionName)
     {
-        foreach (static::$subscribers as $clientId => $callback) {
+        foreach (self::$subscribers as $clientId => $callback) {
             notice("Pass update to callback. ClientId: {$clientId}");
             $callback($update, $sessionName);
         }
@@ -26,16 +26,16 @@ class EventObserver
 
     private static function addSessionClient(string $session): void
     {
-        if (empty(static::$sessionClients[$session])) {
-            static::$sessionClients[$session] = 0;
+        if (empty(self::$sessionClients[$session])) {
+            self::$sessionClients[$session] = 0;
         }
-        ++static::$sessionClients[$session];
+        ++self::$sessionClients[$session];
     }
 
     private static function removeSessionClient(string $session): void
     {
-        if (!empty(static::$sessionClients[$session])) {
-            --static::$sessionClients[$session];
+        if (!empty(self::$sessionClients[$session])) {
+            --self::$sessionClients[$session];
         }
     }
 
@@ -49,8 +49,8 @@ class EventObserver
         }
 
         foreach ($sessions as $session) {
-            static::addSessionClient($session);
-            if (static::$sessionClients[$session] === 1) {
+            self::addSessionClient($session);
+            if (self::$sessionClients[$session] === 1) {
                 warning("Start EventHandler: {$session}");
                 try {
                     $instance = Client::getInstance()->getSession($session);
@@ -60,7 +60,7 @@ class EventObserver
                     EventHandler::cachePlugins(EventHandler::class);
                     $wrapper->getAPI()->setEventHandler(EventHandler::class);
                 } catch (Throwable $e) {
-                    static::removeSessionClient($session);
+                    self::removeSessionClient($session);
                     error('Cant set EventHandler', [
                         'session' => $session,
                         'exception' => Logger::getExceptionAsArray($e),
@@ -79,11 +79,11 @@ class EventObserver
             $sessions[] = $requestedSession;
         }
         foreach ($sessions as $session) {
-            static::removeSessionClient($session);
-            if (empty(static::$sessionClients[$session]) || $force) {
+            self::removeSessionClient($session);
+            if (empty(self::$sessionClients[$session]) || $force) {
                 warning("Stopping EventHandler: {$session}");
                 Client::getInstance()->instances[$session]->unsetEventHandler();
-                unset(EventHandler::$instances[$session], static::$sessionClients[$session]);
+                unset(EventHandler::$instances[$session], self::$sessionClients[$session]);
             }
         }
 
diff --git a/src/EventObservers/LogObserver.php b/src/EventObservers/LogObserver.php
index e6b08f3..dd71990 100644
--- a/src/EventObservers/LogObserver.php
+++ b/src/EventObservers/LogObserver.php
@@ -11,7 +11,7 @@ class LogObserver
 
     public static function notify(string $level, string $message, array $context = []): void
     {
-        foreach (static::$subscribers as $clientId => $callback) {
+        foreach (self::$subscribers as $clientId => $callback) {
             $callback($level, $message, $context);
         }
     }
diff --git a/src/EventObservers/ObserverTrait.php b/src/EventObservers/ObserverTrait.php
index b02b3c5..a595b9e 100644
--- a/src/EventObservers/ObserverTrait.php
+++ b/src/EventObservers/ObserverTrait.php
@@ -11,17 +11,17 @@ trait ObserverTrait
     public static function addSubscriber($clientId, callable $callback): void
     {
         notice("Add event listener. ClientId: {$clientId}");
-        static::$subscribers[$clientId] = $callback;
+        self::$subscribers[$clientId] = $callback;
     }
 
     public static function removeSubscriber($clientId): void
     {
         notice("Removing listener: {$clientId}");
-        unset(static::$subscribers[$clientId]);
-        $listenersCount = count(static::$subscribers);
+        unset(self::$subscribers[$clientId]);
+        $listenersCount = count(self::$subscribers);
         notice("Event listeners left: {$listenersCount}");
         if ($listenersCount === 0) {
-            static::$subscribers = [];
+            self::$subscribers = [];
         }
     }
 }
\ No newline at end of file
diff --git a/src/Files.php b/src/Files.php
index c98956e..30cfdb4 100644
--- a/src/Files.php
+++ b/src/Files.php
@@ -29,7 +29,7 @@ class Files
         }
 
         preg_match(
-            '~' . static::SESSION_FOLDER . "/(?'sessionName'.*?)" . static::SESSION_EXTENSION . '~',
+            '~' . self::SESSION_FOLDER . "/(?'sessionName'.*?)" . self::SESSION_EXTENSION . '~',
             $sessionFile,
             $matches
         );
@@ -50,14 +50,14 @@ class Files
             return null;
         }
         $session = trim(trim($session), '/');
-        $session = static::SESSION_FOLDER . '/' . $session . $extension;
+        $session = self::SESSION_FOLDER . '/' . $session . $extension;
         $session = str_replace('//', '/', $session);
         return $session;
     }
 
     public static function getSessionSettings(string $session): array
     {
-        $settingsFile = static::getSessionFile($session, static::SETTINGS_EXTENSION);
+        $settingsFile = self::getSessionFile($session, self::SETTINGS_EXTENSION);
         $settings = [];
         if (file_exists($settingsFile)) {
             $settings = json_decode(
@@ -73,7 +73,7 @@ class Files
 
     public static function saveSessionSettings(string $session, array $settings = []): void
     {
-        $settingsFile = static::getSessionFile($session, static::SETTINGS_EXTENSION);
+        $settingsFile = self::getSessionFile($session, self::SETTINGS_EXTENSION);
         file_put_contents(
             $settingsFile,
             json_encode(
@@ -91,7 +91,7 @@ class Files
     {
         $files = glob($pattern, $flags) ?: [];
         foreach (glob(dirname($pattern) . '/*', GLOB_ONLYDIR | GLOB_NOSORT) as $dir) {
-            $files = [...$files, ...static::globRecursive($dir . '/' . basename($pattern), $flags)];
+            $files = [...$files, ...self::globRecursive($dir . '/' . basename($pattern), $flags)];
         }
         return $files;
     }
diff --git a/src/Logger.php b/src/Logger.php
index 5545913..3cfd1f5 100644
--- a/src/Logger.php
+++ b/src/Logger.php
@@ -111,14 +111,14 @@ class Logger extends AbstractLogger
 
     public static function getInstance(): Logger
     {
-        if (!static::$instanse) {
+        if (!self::$instanse) {
             $settings = Config::getInstance()->get('telegram');
 
-            $loggerLevel = static::$madelineLevels[$settings['logger']['level']];
-            static::$instanse = new static($loggerLevel);
+            $loggerLevel = self::$madelineLevels[$settings['logger']['level']];
+            self::$instanse = new static($loggerLevel);
         }
 
-        return static::$instanse;
+        return self::$instanse;
     }
 
     /**
@@ -168,7 +168,7 @@ class Logger extends AbstractLogger
                     $replacements["{{$key}}"] = $val;
                 } else {
                     if ($val instanceof DateTimeInterface) {
-                        $replacements["{{$key}}"] = $val->format(static::$dateTimeFormat);
+                        $replacements["{{$key}}"] = $val->format(self::$dateTimeFormat);
                     } else {
                         if (is_object($val)) {
                             $replacements["{{$key}}"] = '[object ' . get_class($val) . ']';
@@ -184,7 +184,7 @@ class Logger extends AbstractLogger
 
         return sprintf(
                 '[%s] [%s] %s %s',
-                date(static::$dateTimeFormat),
+                date(self::$dateTimeFormat),
                 $level,
                 $message,
                 $context ?
diff --git a/src/MadelineProtoExtensions/ApiExtensions.php b/src/MadelineProtoExtensions/ApiExtensions.php
index c0c8b73..874bf17 100644
--- a/src/MadelineProtoExtensions/ApiExtensions.php
+++ b/src/MadelineProtoExtensions/ApiExtensions.php
@@ -96,7 +96,7 @@ class ApiExtensions
                     $textFormated = sprintf($template, $text);
                 }
 
-                $message = static::substringReplace($message, $textFormated, $entity['offset'], $entity['length']);
+                $message = self::substringReplace($message, $textFormated, $entity['offset'], $entity['length']);
 
                 //Увеличим оффсеты всех следующих entity
                 foreach ($entities as $nextKey => &$nextEntity) {
@@ -167,7 +167,7 @@ class ApiExtensions
                 'peer' => $data['to_peer'],
                 'entities' => $message['entities'] ?? [],
             ];
-            if (static::hasMedia($message, false)) {
+            if (self::hasMedia($message, false)) {
                 $messageData['media'] = $message; //MadelineProto сама достанет все media из сообщения.
                 $result[] = $this->madelineProto->messages->sendMedia(...$messageData);
             } else {
@@ -203,7 +203,7 @@ class ApiExtensions
             throw new NoMediaException('Empty message');
         }
 
-        if (!static::hasMedia($message, true)) {
+        if (!self::hasMedia($message, true)) {
             throw new NoMediaException('Message has no media');
         }
 
@@ -246,7 +246,7 @@ class ApiExtensions
             throw new NoMediaException('Empty message');
         }
 
-        if (!static::hasMedia($message, true)) {
+        if (!self::hasMedia($message, true)) {
             throw new NoMediaException('Message has no media');
         }