HI, i solved the gap in the migration. Took some as im a non-coder. I had to create 200 new php files for version migration.
After installation, you get the message to update your database. Before you enter the button, you have to upload the migration files to your map: Ziscoroot/application/migrations.
Download migrations.rar
My version is now 6.0.2 and working... Enjoy your upgrade. Please let me know if this worked.