Fatal error: Uncaught TypeError: hash_equals(): Argument #1 ($known_string) must be of type string, null given in /var/www/html/app-perfectly-prepped-meal/generate_token.php:20 Stack trace: #0 /var/www/html/app-perfectly-prepped-meal/generate_token.php(20): hash_equals() #1 {main} thrown in /var/www/html/app-perfectly-prepped-meal/generate_token.php on line 20