Fatal error: Uncaught Error: Class "League\OAuth2\Server\Grant\AbstractGrant" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\league\oauth2-server\src\Grant\AbstractAuthorizeGrant.php:14 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\league\oauth2-server\src\Grant\AbstractAuthorizeGrant.php on line 14