CONNECTION_SYSTEM_LANG_CODE_EMPTY

[Sarsenov]

While connecting to Madeline, appears this error. How Can I fix ?

CONNECTION_SYSTEM_LANG_CODE_EMPTY {"exception":"[object] (danog\MadelineProto\RPCErrorException(code: 400): CONNECTION_SYSTEM_LANG_CODE_EMPTY at phar:///madeline-72.phar/vendor/danog/madelineproto/src/danog/MadelineProto/MTProtoSession/ResponseHandler.php:405)
[stacktrace]
#0 phar:///madeline-72.phar/vendor/danog/madelineproto/src/danog/MadelineProto/MTProtoSession/ResponseHandler.php(185): danog\MadelineProto\Connection->handleRpcError(Object(danog\MadelineProto\MTProto\OutgoingMessage), Array)
#1 phar:///madeline-72.phar/vendor/danog/madelineproto/src/danog/MadelineProto/MTProtoSession/ResponseHandler.php(67): danog\MadelineProto\Connection->handleResponse(Object(danog\MadelineProto\MTProto\IncomingMessage))
#2 phar:///madeline-72.phar/vendor/amphp/amp/lib/Loop/Driver.php(102): danog\MadelineProto\Connection->handleMessages('at', NULL)
#3 phar:///madeline-72.phar/vendor/amphp/amp/lib/Loop/Driver.php(61): Amp\Loop\Driver->tick()

[danog]

Make sure you specify a valid language code in the settings: https://docs.madelineproto.xyz/PHP/danog/MadelineProto/Settings/AppInfo.html