3.2.3 upgrade to 3.3.0

Upgraded 3.2.3 to 3.3.0 and all went fine

On trying to access forum got following error:

Fatal error: Call to undefined method IPSMember::hasOtherGroups() in \forum330\forum\cache\skin_cache\cacheid_4\skin_global.php on line 291

So though .. must be because using non ipb default skin as the default skin

So I went into admincp change the default skin to be the ipb skin, went back to the forum and get following error:

Fatal error: Call to undefined method IPSMember::hasOtherGroups() in \forum330\forum\cache\skin_cache\cacheid_4\skin_global.php on line 298

Basically same error, just different line number.

So, re-cached ipb default skin (which was showing as being the default)

Same error as last one and is still using non ipb default skin

Tried hard refresh and still same error message.

Tried re-caching skin id 4 and no different, same error as last one

So currently am unable to access forum to test

No idea if due to having ipb addons from 3.2.3 (blog, gallery, nexus, content etc)

NOTE: Have removed path details above before the \forum part