mysql error

I'm getting this error when I click on "save" in my admin panel for vbchat options

Database error in vBulletin 3.0.7:

Invalid SQL: update vbchat_datastore set d_online='yes',d_allowbbcode='no',d_chat_order='bo ttom',d_smiliedisplay='0',d_sm ilieamount='10',d_allowbantag='1',d_maxrooms='0',d _smilequery='1',d_autoprune='1 ',d_autoprunedays='3',d_roomprune='24' where did='1'
mysql error: Unknown column 'd_roomprune' in 'field list'

mysql error number: 1054

What should I do?

nevermind fixed