Traccar server not running

Hi,

my traccar server no longer wants to start, here is the error.
Thanks for your help

2020-11-13 11:29:46  INFO: HikariPool-1 - Starting...
2020-11-13 11:29:50  INFO: HikariPool-1 - Start completed.
2020-11-13 11:29:57  INFO: Clearing database change log checksums
2020-11-13 11:29:58  INFO: Waiting for changelog lock....
2020-11-13 11:30:08  INFO: Waiting for changelog lock....
2020-11-13 11:30:18  INFO: Waiting for changelog lock....
2020-11-13 11:30:28  INFO: Waiting for changelog lock....
2020-11-13 11:30:38  INFO: Waiting for changelog lock....
2020-11-13 11:30:48  INFO: Waiting for changelog lock....
2020-11-13 11:30:58  INFO: Waiting for changelog lock....
2020-11-13 11:31:08  INFO: Successfully acquired change log lock
2020-11-13 11:31:09  INFO: Successfully released change log lock
2020-11-13 11:31:09  INFO: Successfully acquired change log lock
2020-11-13 11:31:09  INFO: Can not use class liquibase.parser.core.yaml.YamlChangeLogParser as a Liquibase service because org.yaml.snakeyaml.constructor.BaseConstructor is not in the classpath
2020-11-13 11:31:09  INFO: Can not use class liquibase.parser.core.json.JsonChangeLogParser as a Liquibase service because org.yaml.snakeyaml.constructor.BaseConstructor is not in the classpath
2020-11-13 11:31:15  INFO: Reading from traccar.DATABASECHANGELOG
2020-11-13 11:31:17  INFO: Reading from traccar.DATABASECHANGELOG
2020-11-13 11:31:17  INFO: Successfully released change log lock
2020-11-13 11:31:19  INFO: Logging initialized @109391ms to org.eclipse.jetty.util.log.Slf4jLog
2020-11-13 11:31:21  WARN: JNA: Callback org.traccar.WindowsService$ServiceMain@4ee203eb threw the following exception - StackOverflowError (GroupTree:46 < ... < *:145 < *:.. < *:146 < *:146)

You have a loop in your group hierarchy. You need to resolve that. What version of Traccar are you using?

Version 64-4.11

Have you manually modified the database? Or migrated from an older version? How did you end up in this situation? Traccar prevents you from making loops with groups.

Yes, I manually modified the database in order to be able to use my tracking application ...

Next time you should probably start with that context. Anyway, you know what the problem is now, so should be an easy fix.

thank you very much it's good I had a mistake in a group. Thank you again for your help :)

can we change the time zone for France UTC + 1? car I have one hour less in the servertime

Not sure how it's related to this topic.