Fatal error: Uncaught InvalidArgumentException: A stream must either be a resource or a string. in /var/www/html/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php:56 Stack trace: #0 /var/www/html/src/app/bootstrap/dependencies.php(53): Monolog\Handler\StreamHandler->__construct(false) #1 /var/www/html/vendor/pimple/pimple/src/Pimple/Container.php(122): {closure}(Object(Slim\Container)) #2 /var/www/html/vendor/slim/slim/Slim/Container.php(109): Pimple\Container->offsetGet('logger') #3 /var/www/html/src/app/Utility/ErrorHandler.php(38): Slim\Container->get('logger') #4 [internal function]: App\Utility\ErrorHandler->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(InvalidArgumentException)) #5 /var/www/html/vendor/slim/slim/Slim/App.php(701): call_user_func_array(Object(App\Utility\ErrorHandler), Array) #6 /var/www/html/vendor/slim/slim/Slim/App.php(394): Slim\App->handleException(Object(InvalidArgumentException), Object(Slim\Http\Request), Object(Slim\Http\Response)) #7 /var/www/html/vendor/ in /var/www/html/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php on line 56