Dump while creating billing document - Overflow during an arithmetic operation (type P) in program "

Good greeting all,

I person travel to an unexpected dump portion trying to make an invoice for a circumstantial income bid (it lone happens for this one). I americium not definite wherever this comes from but I person the feeling it's related to the nett conception assigned to 1 of the items of the income order.

Find beneath much details successful screenshot.

Has anyone encountered this mistake before?

Best Regards,