Missing wrapper ping within timeout of 30000

I been having this error for a while. I changed the wrapper.conf https://imgur.com/OQqSHOU so its not a resource problem. And the logs only tell me:

INFO|540/0|Service traccar|19-05-24 04:39:50|Missing wrapper ping within timeout of 30000
WARNING|540/0|Service traccar|19-05-24 04:39:51|ping between java application and wrapper timed out. if this this is due to server overload consider increasing wrapper.ping.timeout
INFO|540/0|Service traccar|19-05-24 04:39:52|wrapper manager received stop command
INFO|540/0|Service traccar|19-05-24 04:39:53|[Thread-12] INFO org.eclipse.jetty.server.ServerConnector - Stopped ServerConnector@7610a6e1{HTTP/1.1}{0.0.0.0:8082}
INFO|540/0|Service traccar|19-05-24 04:39:54|[Thread-12] INFO org.eclipse.jetty.server.handler.ContextHandler - Stopped o.e.j.s.ServletContextHandler@22d322f5{/api,null,UNAVAILABLE}
INFO|wrapper|Service traccar|19-05-24 04:39:54|waitpid 540 0
INFO|wrapper|Service traccar|19-05-24 04:39:54|exit code posix process: 0 application(status/signal): 0/0

Im using a VPS and configured the domain with https.
Please help

What makes you think that it's not resources problem?

I don't have any tracker working at the moment. And 3gbs of ram, 40gbs of ssd and a Intel Xeon E3-1200 v3 just for running traccar.

Then it's likely a Java issue. I would recommend to install the latest version of Traccar.

I have installed the version 4.0 and running
openjdk version "1.8.0_191"
OpenJDK Runtime Environment (build 1.8.0_191-8u191-b12-2ubuntu0.16.04.1-b12)
OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)

Do you think the version of traccar could be the issue?