Fatal error: Uncaught TypeError: Firebase\JWT\JWT::decode(): Argument #1 ($jwt) must be of type string, null given, called in /var/www/html/index.php on line 15 and defined in /var/www/html/vendor/firebase/php-jwt/src/JWT.php:96 Stack trace: #0 /var/www/html/index.php(15): Firebase\JWT\JWT::decode() #1 {main} thrown in /var/www/html/vendor/firebase/php-jwt/src/JWT.php on line 96