[Klojum]

Code:

2019-04-15 12:32:13.541 T:20567 NOTICE: MYSQL: Connected to version 10.3.7-MariaDB
2019-04-15 12:32:13.691 T:20567 ERROR: Can't update database MyMusic72 from version 0 - it's too old
2019-04-15 12:32:13.719 T:20567 ERROR: Unable to open database: MyMusic71 [1049](Unknown database 'MyMusic71')
2019-04-15 12:32:13.763 T:20567 ERROR: Unable to open database: MyMusic70 [1049](Unknown database 'MyMusic70')
...
2019-04-15 12:32:14.133 T:20567 NOTICE: Old database found - updating from version 60 to 72
2019-04-15 12:32:14.172 T:20567 ERROR: SQL: Can't create database for copy: 'MyMusic60' (1007)
2019-04-15 12:32:14.176 T:20567 ERROR: Unable to copy old database MyMusic60 to new version MyMusic72

It's clear enough as far as I can see. Try doing a mysqldump backup of the MyMusic60 database, have Kodi create a new music database, and restore the backup in it.