It seems a CORS problem, plus a weird redirect:
Access to fetch at 'https://basspistol.com/.well-known/lnurlp/setto' from origin 'https://fevela.me' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
GET https://basspistol.com/.well-known/lnurlp/setto net::ERR_FAILED 301 (Moved Permanently)