Hm, maybe it's the `<dc:creator>` tag causing the issue. Can you check to see if https://web.archive.org/web/20231225135859/https://lorendb.d... has the same problem? (this is an archive from before I added the `<dc:creator>` tag)
Edit: that doesn't seem to be importable. Give me a minute and I'll check manually.
Edit 2: I am unable to figure out a fix to the problem, sorry! My feed works fine for me in Tiny Tiny RSS, so I am tempted to say that it's caused by a very strict feed parser.