hello Renee,
I’m having a similar issue.I trying to connect google analytics on site kit but I was receiving an authentication error.Then all of a sudden I didn’t have connection to site kit as a whole.I tried to reconnect it but it said I do not have permission to authenticate the site even though I’m the owner.I deleted it and reinstalled it but now it says there’s a cached plugin interfering with it.I have deactivated all my other plugins but it’s still not working.