@McSqueezy-0 Ok, strange path to make it work something that should work easily out-of-the-box!
It seems somewhat dangerous, however, as I dunno that crxextract external site, and to download that zip from them is a bit dangerous as they can play with that in any way before to send it to you, put a rootkit inside or likely.
Should be way better to pinpoint the original problem on your machine or Opera installation and to solve that, to avoid such a security issue.
Have you tried to backup your main Opera account, then delete it, and to restore from backup? I seem to remember that there's a way to do this.
When I had to reinstall Opera from scratch, the accounts were fully restored from Opera website, just providing the right account credentials (obviously).
Interesting path anyway, things you've learned are amazing and thanks to have told to us all.