4
What version did you update from? What PHP version do you have?
Did you follow all the upgrade steps? How did you do it?
Please tell us exactly what you did, and hopefully we can help you.
You should also run a file check to make sure that you have all the correct files. To do so, copy both files that are in the distribution:
checksum.php
checksum.md5
to you XOOPS directory, and then run the checksum.php
This will tell you if you have all the right files.
The come back and tell us what did you find out.