This is what I have at the moment, when I added the CNAME record I use
@ for the
name, I’m not sure if that’s the right thing to do, I don’t understand this stuff too well.
The exclamation point says “Another record shares the same name, so we’ve applied CNAME flattening”, which I also don’t understand.
EDIT: I deleted the CNAME and re-added it, then set my certificate to flexible then changed it back to full and now it works! Spent an hour trying to fix this, and it took all of 10 seconds to fix it. I have no idea what happened though.