Fatal error: Uncaught Error: Trait "League\Flysystem\CalculateChecksumFromStream" not found in /home/guillaw/Avimmo/vendor/league/flysystem/src/Filesystem.php:18 Stack trace: #0 {main} thrown in /home/guillaw/Avimmo/vendor/league/flysystem/src/Filesystem.php on line 18