I used apt to install the new extention and got it to work. Geez. Now to do proper backups and update to Postges 15. But, not tonight. 
My history seemed to get wiped so I can’t tell you exactly how I did that but beware. It requires postgres 13 and will try and reinstall that.
PS: Turns out I had turned on automatic backups but had forgotten about them. Not that I knew where they were. I’ll set up an rsync process to put them in the directory I do my other server backups too.