Yes, I revised all. Only had a problem with Q&A. When delete and import tables if Q&A are empty, dont import table and create. You must create...

Solved!!! I created an export independent tables with _wpforo_ tag...Block registerDelete Wp Foro and uninstall plugin.Re-install wpforo.Create again ...

Thanks I will go to read this. Regards!!!

Thanks @Robert for your asnwer!!!

Me too want user multigroups!!!! ;P