I can not issue VAT invoices

the problem is:


It prohibited the creation of the record because of the inability to reproduce the index key KorIDX, Trans2IdIdx.

This is due to the fact that there is a record of having the same thing in the content field

KorIDX: no invoices, no lines

Trans2IdIdx: Trans2Id, ProjCorr



I try to look for this index key but i don't know where it is. Could You help me?