CO11N:ERROR AROSE DURING ACTUAL COST CALCULATION DO YOU WANT TO SEE THE ERR

Dear Colleagues,

Users are getting this error on CO11N when trying to post a confirmation for certain materials/orders.I searched this error on a few forums and can not find a lot of info...could you please point me to the right direction as to how I need to start troubleshootig this?

I checked OPK4 configuration and can't see anything regarding cost over there...

All help is appreciated,

PAPJ1