Fatal error: Uncaught Error: Class 'Psr\Log\AbstractLogger' not found in /home/nusevaghici/public_html/demo/vendor/symfony/error-handler/BufferingLogger.php:21 Stack trace: #0 {main} thrown in /home/nusevaghici/public_html/demo/vendor/symfony/error-handler/BufferingLogger.php on line 21