I have a phpbb forum with the latest version of phpbb, which is acting strangely. People have a hard time registering and when they post something it appears the name of someone else. It seems there is no problem for older members of the forum when they post something.
Also when you do a search for a member in administration the name does not appear even though it's somebody that's registered. The forum might have other problems I'm not aware of and everything started after several forums were merged into one.
I need an expert in Phpbb to inspect all tables and files and and get the forum working properly.