You linked to the guide you followed setting up but failed to really answer or tell us what happened when you (or if you) tried any of the other things we asked you to try.Are you using any deluge plugins? If so, disable/uninstall all of them to eliminate those.
could try running as root(just for quick download test) to make certain not permission related still somehow.
we need at least a Traceback message, isn't there one in log
Which version of raspbian, python, deluge and libtorrent (likely python3-libtorrent and libtorrent-rasterbar2.0 packages, but not 100% sure) are installed?
.....etc
We need information, we all keep telling you this, there were suggestions made of things to test or specific logs to look for, and you provided us with your setup guide only.
Tell us what happened with the things we asked you to try so we know what to do or try next, or where to look...combing through a guide on a website doesn't tell us much of anything about what YOUR setup is doing compared to the actual errors or results of commands and versions of packages.