I just wanted to update AcyMailing Starter from 6.3.1. to 6.9.2. But I get the following error:
Warning
Unknown column 'backend_edition' in 'field list'
Error
Error installing component
When I then navigate to the component AcyMailing I get the following error:
An error has occurred.
1146 Table 'xxx.#__acym_plugin' doesn't exist