I deleted the repip column in mybb_users by accident, I meant to empty but clicked on drop and it's now gone and members can't register now. How can I add the column back?
I'm having a hard time understanding how you can know how to empty a column but not know how to add it back.
I'll assume you are using phpMyAdmin?
In that case you would view the structure of the mybb_users table and add a column using the tools under the structure view.