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