Fatal error: Uncaught Error: Class 'Symfony\Component\Cache\Adapter\Psr16Adapter' not found in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/cache/Adapter/SimpleCacheAdapter.php:19 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/cache/Adapter/SimpleCacheAdapter.php on line 19