Fatal error: Uncaught Error: Interface 'Masterminds\HTML5\Serializer\RulesInterface' not found in C:\Apache24\htdocs\vendor.old\masterminds\html5\src\HTML5\Serializer\OutputRules.php:17 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor.old\masterminds\html5\src\HTML5\Serializer\OutputRules.php on line 17