Failed with all combinations. I think i got the gist of it. The culprit is probably your callback URL. Comparison of your LNURL and #[2]
# Request to your LNURL
```
torsocks curl https://7tpv3ynajkv6cdocmzitcd4z3xrstp3ic6xtv5om3dc2ned3fffll5qd.onion/.well-known/lnurlp/oniontip -vvv
```
# Response
```
{"callback":"https://7tpv3ynajkv6cdocmzitcd4z3xrstp3ic6xtv5om3dc2ned3fffll5qd.onion/BTC/UILNURL/pay/i/9ijw3FZeUuYsPxSVdFWRxn" ... }
```
# Request to sommerfeld
```
torsocks curl http://strisemarx.uirv6w4mn6jpni53pd73mpacg2vcezlp2y7l3tg3kf5lo5jjh3hcvdid.onion/.well-known/lnurlp/sommerfeld
```
# Response
```
{"status":"OK","callback":"https://strisemarx.com/.well-known/lnurlp/sommerfeld", ... }
```