Both lot &1 and &2 are permitted for payment method &3

What causes this issue?

In the Payment Medium Workbench (PMW) or when you create IDocs you use
the functions for transferring entries to the check register. Only one
check lot with its next lots must be permitted for the related payment
method to do this. This is necessary so that the system can determine
the check lot automatically.

System Response

Processing is terminated.

How to fix this error?

In <DS:TRAN.FCHI>check number maintenance </> select either lot &V1& or
lot &V2& with payment method &V3&, or enter either of them as the next
lot of the other.

Error message extract from SAP system. Copyright SAP SE.