Error: Wrong Period in the administration record

Hi people,

We are doing the implementation in a new Client with new companies.

The MM period and FI period are ok. (Feb and Mar openned)

But when the people execute the transaction MB1C, the system are showing the error:

Internal error in FORM/FUNCTION PERIODENART_BESTIMMEN in position 1 with RC

Have you already seen this problem.

Thanks,

Rosana.