Warning: Cannot bind an instance to a static closure, this will be an error in PHP 9 in /var/www/html/flight/vendor/slim/slim/Slim/CallableResolver.php on line 177

Fatal error: Uncaught TypeError: Slim\CallableResolver::bindToContainer(): Return value must be of type callable, null returned in /var/www/html/flight/vendor/slim/slim/Slim/CallableResolver.php:179 Stack trace: #0 /var/www/html/flight/vendor/slim/slim/Slim/CallableResolver.php(54): Slim\CallableResolver->bindToContainer() #1 /var/www/html/flight/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(137): Slim\CallableResolver->resolve() #2 /var/www/html/flight/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(119): Slim\Middleware\ErrorMiddleware->getDefaultErrorHandler() #3 /var/www/html/flight/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(90): Slim\Middleware\ErrorMiddleware->getErrorHandler() #4 /var/www/html/flight/vendor/slim/slim/Slim/Middleware/ErrorMiddleware.php(79): Slim\Middleware\ErrorMiddleware->handleException() #5 /var/www/html/flight/vendor/slim/slim/Slim/MiddlewareDispatcher.php(129): Slim\Middleware\ErrorMiddleware->process() #6 /var/www/html/flight/vendor/slim/slim/Slim/MiddlewareDispatcher.php(73): Psr\Http\Server\RequestHandlerInterface@anonymous->handle() #7 /var/www/html/flight/vendor/slim/slim/Slim/App.php(209): Slim\MiddlewareDispatcher->handle() #8 /var/www/html/flight/vendor/slim/slim/Slim/App.php(193): Slim\App->handle() #9 /var/www/html/flight/public/index.php(226): Slim\App->run() #10 {main} thrown in /var/www/html/flight/vendor/slim/slim/Slim/CallableResolver.php on line 179