Fatal error: Uncaught Error: Class 'Composer\Semver\Constraint\MultiConstraint' not found in /home/supporta/public_html/vendor/wikimedia/composer-merge-plugin/src/MultiConstraint.php:24 Stack trace: #0 {main} thrown in /home/supporta/public_html/vendor/wikimedia/composer-merge-plugin/src/MultiConstraint.php on line 24