Warning: include(/var/www/vendor/psr/log/Psr/Log/LogLevel.php): failed to open stream: Cannot allocate memory in /var/www/vendor/composer/ClassLoader.php on line 444

Warning: include(): Failed opening '/var/www/vendor/composer/../psr/log/Psr/Log/LogLevel.php' for inclusion (include_path='.:/usr/local/lib/php') in /var/www/vendor/composer/ClassLoader.php on line 444

Fatal error: Uncaught Error: Class 'Psr\Log\LogLevel' not found in /var/www/vendor/symfony/error-handler/ErrorHandler.php:113 Stack trace: #0 /var/www/vendor/symfony/framework-bundle/FrameworkBundle.php(92): Symfony\Component\ErrorHandler\ErrorHandler::register(NULL, false) #1 /var/www/vendor/symfony/http-kernel/Kernel.php(140): Symfony\Bundle\FrameworkBundle\FrameworkBundle->boot() #2 /var/www/vendor/symfony/http-kernel/Kernel.php(196): Symfony\Component\HttpKernel\Kernel->boot() #3 /var/www/public/index.php(18): Symfony\Component\HttpKernel\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #4 {main} thrown in /var/www/vendor/symfony/error-handler/ErrorHandler.php on line 113