( ! ) Fatal error: Uncaught Error: Using $this when not in object context in /var/www/html/api-btw/vendor/symfony/error-handler/Resources/views/error.html.php on line 4 ( ! ) Error: Using $this when not in object context in /var/www/html/api-btw/vendor/symfony/error-handler/Resources/views/error.html.php on line 4 Call Stack #TimeMemoryFunctionLocation 10.0003401608{main}( ).../error.html.php:0