Fatal error: Uncaught Error: Interface "Masterminds\HTML5\Serializer\RulesInterface" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\masterminds\html5\src\HTML5\Serializer\OutputRules.php:17 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\masterminds\html5\src\HTML5\Serializer\OutputRules.php on line 17