Thanks for responding. I guess time will tell if this is an exit scam or a honest downtime.
I can confirm the same error.
Clearnet website is opening just fine, but I was not able to open Chipmixer onion link, and I tried changing identity several times.
I checked official Tor status page and they are currently experiencing disruptions (Directory Authorities and DDOS), so this could be related with Chipmixer.
https://status.torproject.org/This is why I see when I try to open Chipmixer website:
Onionsite Not Found
The most likely cause is that the onionsite is offline. Contact the onionsite administrator.
Details: 0xF0 — The requested onion service descriptor can't be found on the hashring and therefore the service is not reachable by the client.