Unfortunately I can’t be of much specific help, my setup is pretty specific to my NAS and my content comes from usenet so it’s a little bit different.
But the first thing to do is bring it up in stages, starting with running one workflow. Say movies because they are a bit simpler. Run your search from inside Radarr and check the logs, you should get a good idea of where it’s breaking. Once Radarr is working as expected and placing the processed download in the right place you can move the same settings to Sonarr. After those are working then try running them from Jellyseerr.
If you get stuck post the error message you’re getting, without that we can’t help.