threadnum column does not exist in your sql database. Probably because of a bad (uncompatible) plugin. you may run this sql code to create that column for every user.
ALTER TABLE mybb_users ADD threadnum INT NOT NULL DEFAULT 0
i tried to run this sql but
Error
SQL query:
ALTER TABLE mybb2_users ADD threadnum INT NOT NULL DEFAULT 0
MySQL said: Documentation
#1146 - Table 'thegamez_db1.mybb2_users' doesn't exist
what is mybb2_users
i only have
mybb_users