There was nothing; all of a sudden the panel input started giving 502 bad gateway error.
https://prnt.sc/q62HfWmwaZKv connect() to unix:/usr/local/cwp/php71/var/sockets/cwpsvc.sock failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1, server: localhost, request: "HEAD / HTTP/1.0", upstream: "fastcgi://unix:/usr/local/cwp/php71/var/sockets/cwpsvc.sock:", host: "webmail.teleserviserbaa.com"
2022/05/13 12:15:10 [error] 2422569#0: *1802 connect() to unix:/usr/local/cwp/php71/var/sockets/cwpsvc.sock failed (111: Connection refused) while connecting to upstream, client: 127.0.0.1