I set up a TikiWiki forum about two weeks ago and I can't find a solution to this problem after numerous searches and permissions adjustments.
When logged in under the admin account, I can post and reply to any topic or post in any forum.
However regular Registered Users can only reply to a post using the reply button by the topics original author. If the user should use any other reply button they will get this error:
Notice: this variable may not be empty: $_POST%22thread_sort_mode%22
I even gave the Registered Users group admin permissions and that did not fix the problem.
Has anyone run into this error?
Is this a new, current or old error that will be fixed by an update or permissions change that I missed?
Any help would be welcome as this current error makes my TikiWiki forums nearly unusable.