What version are you using? You should try latest Traccar.
I am using Version 3.14
INFO: Operating system name: Linux version: 4.4.0-96-generic architecture: amd64
2017-10-11 07:29:19
INFO: Java runtime name: OpenJDK 64-Bit Server VM vendor: Oracle Corporation version: 25.131-b11
2017-10-11 07:29:19
INFO: Memory limit heap: 446mb non-heap: 0mb
2017-10-11 07:29:19 INFO: Character encoding: UTF-8 charset: UTF-8
2017-10-11 07:29:19 INFO: Version: 3.14-SNAPSHOT
2017-10-11 07:29:22
Works for me with latest code. Possibly you need to wait for next release.
Thanks Anton, the next release is coming soon??
Don't know yet.
Please i need your help
Constantly appear this error and device is desconectad
What is wrong ???