I have an issue on 2 sites.
MT doesn’t load Version 7.x
I had to reupload v5.x and restore an old CSS version since all css was wiped out.
After I update to last version again, issue remains. It doesn’t load.
I tried several possibilities (inactivate all plugins, etc) but issue remains.
Uncaught TypeError: Cannot read properties of undefined (reading ‘disabled’) (line 2)