Fatal error: Uncaught TypeError: Argument 2 passed to Auth0\SDK\Helpers\Tokens\TokenVerifier::__construct() must be of the type string, null given, called in /var/www/html/connection.auth0.php on line 32 and defined in /var/www/vendor/auth0/auth0-php/src/Helpers/Tokens/TokenVerifier.php:52 Stack trace: #0 /var/www/html/connection.auth0.php(32): Auth0\SDK\Helpers\Tokens\TokenVerifier->__construct('https://charter...', NULL, Object(Auth0\SDK\Helpers\Tokens\AsymmetricVerifier)) #1 /var/www/html/connection.php(5): include('/var/www/html/c...') #2 /var/www/html/index.php(2): include('/var/www/html/c...') #3 {main} thrown in /var/www/vendor/auth0/auth0-php/src/Helpers/Tokens/TokenVerifier.php on line 52