I may be wrong on this but
I believe some Steiny plugs are in the app itself
and not in the plug-ins folder.
In another topic I wanted to remove HalionOne
but was advised against it because it
is so woven into the C7 app itself
and this might also be the case with GAO.
Since there is only one song
that is causing you probs,
try using the C7 ‘Safe Start Mode’.
and see if that helps.
If it does not help, try this:
2-Look for GAO inside the C7 app
(not sure how to do this on a PC.
If you are on a Mac I can show you how)
3-If you find it, delete it
and see if everything is still working OK.
4-If all is now well, then ‘bob’s yer uncle’.
5-If things are now broken,
restore from back-up.
HTH (hope this helps)