sessions not enabled on go daddy server

[eluser]labao[/eluser]
perhaps someone could tell me what the actual name of this process is called and then I can call godaddy and ask them whats going on. Like I said, the site works locally while on the actually website. not using a local server. but doesn't work remotely. Im trying to assign multiple vars to the userdata column in my ci_sessions table... EVERYTHING else in the table is being recorder EXCEPT userdata.

is the userdata function reliable on the server?