How can I fix a workbench job where the Schema is locked and doesn't match the dataset?

Hi, everyone!

I'm running into an issue with the workbench and can't seem to find a solution. One of my jobs has the work bench schema messed up and is pulling nonexistent headers. I'm not sure if it is getting this information from a previous upload but it doesn't even match the column names or number of columns.

I selected "Allow schema Changes" as suggested in an older, locked thread. But, it didn't work.

Do you have any suggestions?

Thanks!