I have been entering accounting data in 2 companies since last September and learning Odoo as I go. Last week I started to receive the message:  "You cannot delete a tax line as it would impact the tax report"-when trying to validate any bank statement line.

What I did last week: I had Reimbursement Expenses (which have a 5% tax ) as an "Other Input" on 2 payslips. I decided to remove these from the payslips and re-reconcile these directly to Reimbursement Expenses account. I deleted the 2 quarterly bank statements and operations associated with these , then reuploaded them. I now can't reconcile any items, including a test one I added on the most recent statement without getting the validation error. (I do not have this issue in the second company)

Also last week I updated Reverse Charge Provisions Tax in company 1. I have compared both sets of taxes in the two companies and they are identical.

Any help provided would be most welcome as I am stuck. I have little/no developer experience so any aid in this area would have to be very specific please.