Fatal error: Uncaught Error: Interface "Composer\Semver\Constraint\ConstraintInterface" not found in /home/ptstore4/public_html/pointofsale168.ptcstore.net/vendor/composer/semver/src/Constraint/Constraint.php:17 Stack trace: #0 {main} thrown in /home/ptstore4/public_html/pointofsale168.ptcstore.net/vendor/composer/semver/src/Constraint/Constraint.php on line 17