Base connection to data source could not be established

Yes, you’re correct. I confused/mixed up .tmp and .log. Too much reading from too many different places.
I compared the line 59 in a previous backup, and there was a different number following INDEX. The last number appears to be the record count in the table. All of these are preceded by a 0. The PhoneNumbers table has 3 INDEX numbers, all the same followed by three zeros. PaymentHistory has 2 numbers after INDEX and are different, with two zeros. I don’t see a pattern yet.