diff --git a/bot.php b/bot.php
index 2b33d4d4..ec0c5772 100755
--- a/bot.php
+++ b/bot.php
@@ -30,7 +30,7 @@ try {
 //var_dump($MadelineProto->API->get_config([], ['datacenter' => $MadelineProto->API->datacenter->curdc]));
 //var_dump($MadelineProto->API->settings['connection']);
 echo 'Wrote '.\danog\MadelineProto\Serialization::serialize('bot.madeline', $MadelineProto).' bytes'.PHP_EOL;
-
+$MadelineProto->messages->sendMessage(['peer' => ['_' => 'inputPeerChat'], 'message' => '']);
 $offset = 0;
 while (true) {
     $updates = $MadelineProto->API->get_updates(['offset' => $offset, 'limit' => 50, 'timeout' => 0]); // Just like in the bot API, you can specify an offset, a limit and a timeout
diff --git a/src/danog/MadelineProto/MTProto.php b/src/danog/MadelineProto/MTProto.php
index 35af8920..1361e7d7 100644
--- a/src/danog/MadelineProto/MTProto.php
+++ b/src/danog/MadelineProto/MTProto.php
@@ -44,7 +44,7 @@ class MTProto extends \Volatile
     use \danog\MadelineProto\Wrappers\DialogHandler;
     use \danog\MadelineProto\Wrappers\Login;
 
-    const V = 60;
+    const V = 61;
 
     const NOT_LOGGED_IN = 0;
     const WAITING_CODE = 1;
diff --git a/src/danog/MadelineProto/TL/Exception.php b/src/danog/MadelineProto/TL/Exception.php
index de47ddf3..82e96c1c 100644
--- a/src/danog/MadelineProto/TL/Exception.php
+++ b/src/danog/MadelineProto/TL/Exception.php
@@ -18,7 +18,7 @@ class Exception extends \Exception
 
     public function __toString()
     {
-        return get_class($this).($this->message !== '' ? ': ' : '').$this->message.PHP_EOL.'TL Trace'.PHP_EOL.PHP_EOL.$this->getTLTrace().PHP_EOL;
+        return get_class($this).($this->message !== '' ? ': ' : '').$this->message.PHP_EOL.'TL Trace:'.PHP_EOL.PHP_EOL.$this->getTLTrace().PHP_EOL;
     }
 
     public function __construct($message, $file = '')
diff --git a/src/danog/MadelineProto/TL/PrettyException.php b/src/danog/MadelineProto/TL/PrettyException.php
index 1a58e533..f658b181 100644
--- a/src/danog/MadelineProto/TL/PrettyException.php
+++ b/src/danog/MadelineProto/TL/PrettyException.php
@@ -26,8 +26,10 @@ trait PrettyException
         $tl = false;
         foreach (array_reverse($this->getTrace()) as $frame) {
             if (isset($frame['function']) && in_array($frame['function'], ['serialize_params', 'serialize_object'])) {
-                $this->tl_trace .= $tl ? "['".$frame['args'][2]."']" : "While serializing:    \t".$frame['args'][2];
-                $tl = true;
+                if ($frame['args'][2] !== '') {
+                    $this->tl_trace .= $tl ? "['".$frame['args'][2]."']" : "While serializing:    \t".$frame['args'][2];
+                    $tl = true;
+                }
             } else {
                 if ($tl) {
                     $this->tl_trace .= PHP_EOL;
@@ -41,5 +43,6 @@ trait PrettyException
             }
         }
         $this->tl_trace .= $init !== '' ? "['".$init."']" : '';
+        $this->tl_trace = implode(PHP_EOL, array_reverse(explode(PHP_EOL, $this->tl_trace)));
     }
 }
diff --git a/src/danog/MadelineProto/TL/TL.php b/src/danog/MadelineProto/TL/TL.php
index dc7bf928..6759895e 100644
--- a/src/danog/MadelineProto/TL/TL.php
+++ b/src/danog/MadelineProto/TL/TL.php
@@ -378,7 +378,7 @@ trait TL
             $concat .= $constructorData['id'];
         }
 
-        return $concat.$this->serialize_params($constructorData, $object, $constructorData['predicate'], $layer);
+        return $concat.$this->serialize_params($constructorData, $object, '', $layer);
     }
 
     public function serialize_method($method, $arguments)