1648384316: Saving in-memory database to mosquitto.db.
1648384316: Error saving in-memory database, unable to open mosquitto.db.new for writing.
1648384316: Error: Permission denied.

{"level":"error","ts":1648317725.7487366,"logger":"http.log.error","msg":"net/http: HTTP/1.x transport connection broken: malformed HTTP response \"\\x00\\x00\\x06\\x04\\x00\\x00\\x00\\x00\\x00\\x00\\x05\\x00\\x00@\\x00\"","request":{"remote_addr":"176.53.217.145:35251","proto":"HTTP/1.1","method":"GET","host":"grpc.netmaker.65-49-52-72.nip.io","uri":"/favicon.ico","headers":{"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36"],"Accept":["*/*"],"Accept-Encoding":["gzip, deflate"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"","proto_mutual":true,"server_name":"grpc.netmaker.65-49-52-72.nip.io"}},"duration":0.00171527,"status":502,"err_id":"zabbm243n","err_trace":"reverseproxy.statusError (reverseproxy.go:886)"}
{"level":"error","ts":1648317725.9658267,"logger":"http.log.error","msg":"net/http: HTTP/1.x transport connection broken: malformed HTTP response \"\\x00\\x00\\x06\\x04\\x00\\x00\\x00\\x00\\x00\\x00\\x05\\x00\\x00@\\x00\"","request":{"remote_addr":"176.53.217.145:35251","proto":"HTTP/1.1","method":"GET","host":"grpc.netmaker.65-49-52-72.nip.io","uri":"/favicon.ico","headers":{"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36"],"Accept":["*/*"],"Accept-Encoding":["gzip, deflate"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"","proto_mutual":true,"server_name":"grpc.netmaker.65-49-52-72.nip.io"}},"duration":0.001891838,"status":502,"err_id":"ay3i8awtb","err_trace":"reverseproxy.statusError (reverseproxy.go:886)"}

Am I doing something wrong ? why the two nodes can't ping each other?