Newbie has RSS issues

I have a feed on my website here: https://www.quietfish.com/notebook/

I have errors when it validates and recent entries since Aug 14 haven’t been picked up by Bloglines (this is the only reader I have set up to read feeds).

I did two things that might have made this happen.

1) Moved/imported info from MT
2) Moved from one folder on my server to the folder previously occupied by my MT files.

Any help would be appreciated!