Fatal error: Uncaught Error: Interface "Composer\Semver\Constraint\ConstraintInterface" not found in /usr/home/mw2p5ujyzt/www/htdocs/mode2_piwik/vendor/composer/semver/src/Constraint/EmptyConstraint.php:17 Stack trace: #0 {main} thrown in /usr/home/mw2p5ujyzt/www/htdocs/mode2_piwik/vendor/composer/semver/src/Constraint/EmptyConstraint.php on line 17