3
This is driving me crazy as well, but in a different context:
When I attempt to "Submit" in the MyDownloads section, I am getting this error. I've re-installed XOOPS a few times, and it works initially. But, as I work on the site, activate modules, alter templates, etc. the error eventually comes back...
... could it be detecting too much IP traffice from me and shutting me out or something?