Device getting offline/onlne

Hi,
I have a device which was working fine on other server, I moved that device to a new server then it keeps showing messages of online/offline, below are the logs. Any ides what could be the issue. Ports are showing open.

- ProvisionException (... < NotificatorManager:73 < NotificationManager:104 < ... < *:101 < ... < *:100 < *:124 < ConnectionManager:261 < ...)
2022-10-25 09:53:55  INFO: [T8bb3c032] disconnected
2022-10-25 09:53:55  INFO: [T8bb3c032] error - Unable to provision, see the following errors:

1) [Guice/NullInjectedIntoNonNullable]: null returned by binding at MainModule.provideSmsManager()
 but the 1st parameter of NotificatorSms.<init>(NotificatorSms.java:37) is not @Nullable
  at MainModule.provideSmsManager(MainModule.java:126)
  at NotificatorSms.<init>(NotificatorSms.java:37)
      \_ for 1st parameter
  while locating NotificatorSms

Learn more:
  https://github.com/google/guice/wiki/NULL_INJECTED_INTO_NON_NULLABLE

1 error

Some issue in notifications which has been fixed, please ignore it.

Can you tell me what you did?
I have the same problem and I realize that is showing if a unit tries to enter or exit geofences.

In my case, I have configured email and sms for notifications but did not configure SMS and email in traccar.xml file.