Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Support\Htmlable" not found in C:\laragon\www\bookstack\app\Activity\Notifications\MessageParts\EntityLinkMessageLine.php:12 Stack trace: #0 {main} thrown in C:\laragon\www\bookstack\app\Activity\Notifications\MessageParts\EntityLinkMessageLine.php on line 12