Did you try clicking on that “Open Tor settings” button in your screenshot and then “Delete outdated Tor files and shut down” and restart Bisq?
If that doesn’t fix the issue and you are able to access .onion addresses with Tor Browser (you could try https://3g2upl4pq6kufc4m.onion/, which is the DuckDuckGo search engine’s onion address), you should definitely report this issue on the GitHub issue tracker.
I found this an issue which seems very similar to yours (same “Unsupported private_key algorithm. Did Tor get a new key type for hidden services?” error message):