Error when upgrading the forum

[kusadasi]

Hello

After a very long time I have decided to upgrade my forums however when upgrading I am gettiing below error , how can I fix this and upgrade my forums ? 

mySQL query error: SELECT m.*, g.* FROM 29506256members m LEFT JOIN 29506256groups g ON (g.g_id=m.mgroup) WHERE LOWER(name)='spring'

SQL error: Unknown column 'm.mgroup' in 'on clause'
SQL error code: 1054
Date: Sunday 18th o October 2015 06:11:13 AM

 

[Jim M]

Missinga column in your table. May want to restore your backup and try again. If you have the issue again, please submit a ticket