couple system - database error

Hello ragezone, got a little problem with the couple system

Whenever 2 chars made a couple, and break up they cant get make another couple with an other char since it says "database error"

Is there a way to fix this?

PS already looked into:
http://forum.ragezone.com/f457/quick...em-fix-627176/

but got the same problem as:
http://forum.ragezone.com/5400960-post10.html

seems the fix is simple to 'prune' all the data from tblCouple and tblCouplePlayer.

but i haven't figured out how to do that, sorry for these (if they are) silly questions

thx in advance