Warning: Undefined array key "user" in /var/www/u2366087/data/www/dan-gle.pro/success.php on line 4

Fatal error: Uncaught TypeError: Telegram::getByUser(): Argument #1 ($name) must be of type string, null given, called in /var/www/u2366087/data/www/dan-gle.pro/success.php on line 4 and defined in /var/www/u2366087/data/www/dan-gle.pro/inc/Telegram.php:29 Stack trace: #0 /var/www/u2366087/data/www/dan-gle.pro/success.php(4): Telegram::getByUser(NULL) #1 {main} thrown in /var/www/u2366087/data/www/dan-gle.pro/inc/Telegram.php on line 29