UBB.Developers Forums UBB.threads 6 V6 Modifications Forum Design Integration Current Threads not loading

I just install IIP on my new 6.5, migrated from 6.3.
The Current Threads box is there, but if you click the threads they are pointing to an error message:

There was a problem looking up the post in our database.


if you any see it, please go to:
http://www.imigrar.com/forum/index.php?Cat=0
end click on any "Current Threads" to check.
There is any fix?