https://igrovyesistemy.miraheze.org
I think the userrights were incorrectly set. In the 'ceo' user group it should be:
'+wgGroupPermissions' => array(
'+igrovyesistemywiki' => array(
(start fragment)
'ceo' => array(
'ceo' => true,
'bureaucrat' => true,
'sysmag' => true,
'trusted' => true,
'autochecked users' => true,
'editors' => true,
),
(end of fragment)
),
These userrights cannot be managed via Служебная:ManageWikiPermissions, so I decided to create this task.