Warning: Undefined array key "hash" in /var/www/vhosts/relematic.mx/it.relematic.mx/index.php on line 29

Fatal error: Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /var/www/vhosts/relematic.mx/it.relematic.mx/index.php:29 Stack trace: #0 /var/www/vhosts/relematic.mx/it.relematic.mx/index.php(29): hash_equals() #1 /var/www/vhosts/relematic.mx/it.relematic.mx/index.php(21): Transport->verify() #2 /var/www/vhosts/relematic.mx/it.relematic.mx/index.php(88): Transport->__construct() #3 {main} thrown in /var/www/vhosts/relematic.mx/it.relematic.mx/index.php on line 29