diff --git a/src/danog/MadelineProto/RPCErrorException.php b/src/danog/MadelineProto/RPCErrorException.php
index 04f036d5..2245d7b4 100644
--- a/src/danog/MadelineProto/RPCErrorException.php
+++ b/src/danog/MadelineProto/RPCErrorException.php
@@ -42,7 +42,7 @@ class RPCErrorException extends \Exception
             case 'TYPE_CONSTRUCTOR_INVALID': $message = 'The type constructor is invalid'; break;
             case 'FILE_PART_INVALID': $message = 'The file part number is invalid'; break;
             case 'FILE_PARTS_INVALID': $message = 'The number of file parts is invalid'; break;
-            case 'FILE_PART_Х_MISSING': $message = 'Part X (where X is a number) of the file is missing from storage'; break;
+            case 'FILE_PART_Ð¥_MISSING': $message = 'Part X (where X is a number) of the file is missing from storage'; break;
             case 'MD5_CHECKSUM_INVALID': $message = 'The MD5 checksums do not match'; break;
             case 'PHOTO_INVALID_DIMENSIONS': $message = 'The photo dimensions are invalid'; break;
             case 'FIELD_NAME_INVALID': $message = 'The field with the name FIELD_NAME is invalid'; break;
@@ -61,7 +61,7 @@ class RPCErrorException extends \Exception
             case -429: $message = 'Too many requests'; break;
         }
         parent::__construct($message, $code, $previous);
-        if (in_array($this->rpc, ['CHANNEL_PRIVATE', -404, -429, 'USERNAME_NOT_OCCUPIED', 'ACCESS_TOKEN_INVALID', 'AUTH_KEY_UNREGISTERED�'])) {
+        if (in_array($this->rpc, ['CHANNEL_PRIVATE', -404, -429, 'USERNAME_NOT_OCCUPIED', 'ACCESS_TOKEN_INVALID', 'AUTH_KEY_UNREGISTERED'])) {
             return;
         }
         if (strpos($this->rpc, 'FLOOD_WAIT_') !== false) {