Something is wrong with your MySQL database:
2019-04-22 17:45:21.827 T:3961062112 NOTICE: MYSQL: Connected to version 10.2.23-MariaDB-10.2.23+maria~stretch
2019-04-22 17:45:21.841 T:3961062112 ERROR: SQL: [MyMusic72] Undefined MySQL error: Code (1142)
Query: SELECT idVersion FROM version
2019-04-22 17:45:21.841 T:3961062112 ERROR: Process error processing job
You may find dropping the newly created databases helps fix the migration process.