CC &, trans.&, validity date &, category &: Error in costing

What causes this issue?

An error occurred while costing a cash flow.

System Response

The entries belonging to the cash flow can not be transferred.

How to fix this error?

Check the erroneous cash flow. If necessary, you can find more specific
information about the error in the error log.

Error message extract from SAP system. Copyright SAP SE.