I don't know how many forms you have and it is strange that the error is occurring on all of them.
My best guess is that Autocrat has lost track of where the last row is.
This can happen when a row of data is deleted and the following data is moved up. You should always delete the entire row.
For one of the forms, select a new destination for the responses. It can be in the same spreadsheet.
If the number of rows don't match, you might have found the problem.
Created the merge job pointing to the new response sheet.
If the old response have fewer rows and the status columns are correct, you can copy and paste the old information on top of the new information.
Delete any extra rows in the new sheet and submit a test form.
You may want to set the form to not allow form submissions before you begin and back on before you test.
If the old response sheet has more rows than the new sheet, it means that someone manually added a row.
Let me know if the new response sheet is less than the old response sheet.
Let me know if you have any questions.