Unable to start netwrok server

I have successfully installed and made changes in the config file for the lora server.
when I start the server, I get the following errors in the log:

– Logs begin at Tue 2018-08-07 05:17:01 UTC, end at Tue 2018-08-07 06:48:55 UTC. –
Aug 07 06:32:51 raspberrypi systemd[1]: Stopped loraserver.service.
Aug 07 06:33:20 raspberrypi systemd[1]: Starting LoRa Server…
Aug 07 06:33:20 raspberrypi systemd[1]: Started LoRa Server.
Aug 07 06:33:20 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:20Z” level=info msg=“starting LoRa Server” band=EU_863_870 docs="https://docs.lor
Aug 07 06:33:20 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:20Z” level=info msg=“setup redis connection pool” url=“redis://localhost:6379”
Aug 07 06:33:20 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:20Z” level=info msg=“connecting to postgresql”
Aug 07 06:33:20 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:20Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:22 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:22Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:24 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:24Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:26 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:26Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:28 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:28Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:30 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:30Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:32 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:32Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:34 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:34Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:36 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:36Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:38 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:38Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:40 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:40Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:42 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:42Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:44 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:44Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:46 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:46Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:48 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:48Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:50 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:50Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:52 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:52Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:54 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:54Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:56 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:56Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:33:58 raspberrypi loraserver[3415]: time=“2018-08-07T06:33:58Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:00 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:00Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:02 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:02Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:04 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:04Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:06 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:06Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:08 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:08Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:10 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:10Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:12 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:12Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:14 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:14Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:16 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:16Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:18 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:18Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:20 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:20Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:22 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:22Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:24 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:24Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:26 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:26Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””
Aug 07 06:34:28 raspberrypi loraserver[3415]: time=“2018-08-07T06:34:28Z” level=error msg=“ping database error, will retry in 2s: pq: password authentication failed for user “loraserver””

Please help me and let me know where I am going wrong.