Fatal error: Uncaught Error: Class "Ramsey\Collection\Map\AbstractMap" not found in /home/deborapsol/laravel/vendor/ramsey/collection/src/Map/AssociativeArrayMap.php:23 Stack trace: #0 {main} thrown in /home/deborapsol/laravel/vendor/ramsey/collection/src/Map/AssociativeArrayMap.php on line 23