Table Error is a regression bug caused by changes for Lock Invoices. Lock Invoices is a new feature to lock only invoices, on or before a specified date. Other Lock options affect other dated accounting entries, such as Bills.
Using Auto-Pay or the Receipts tab on an invoice, you may encounter an error saying, Error when executing the method MgrProtectedBtns at line number 59. A table was expected.
It is safe to click Continue and ignore this message. This error will be fixed for Big Business 13.36.