I have encountered this problem: Argument type for this function is invalid
(S)\Classes\SalesFormLetter_Invoice\chooseLinesPackingSlip - line 59
(S)\Classes\SalesFormLetter_Invoice\chooseLines - line 71
(S)\Classes\SalesFormLetter\run - line 44
(S)\Classes\SalesFormLetter_Invoice\run - line 6
(S)\Classes\BatchRun\runJobStatic - line 63
It is a batch job to print posted invoices. It worked untel I changed the batch job description.
Wish you could help me.