Error importing APInvoice DebitMemo: CheckDocumentIsLocked

[thanvanhai (Thân Văn Hải)]

I get this error when I import APInvoice DebitMemo:

Exception caught in: Epicor.ServiceModel

Error Detail

Program: Erp.Services.BO.APInvoice.dll
Method: CheckDocumentIsLocked
Line Number: 19736
Column Number: 17
when I change the invoice number to another, I can only enter the error with the invoice number: 'BTY001-2021-7-001/2

Thanks you have a nice day!