For 5-6 years our server have been registered at GT.com. Recently we've changed our Server Name and Version in our configuration, where we usually do, to notice that every other tracker updated itself with the latest info, except yours.

We are not sure if the problem we'are experiencing is ours or yours.

Thanks in advance!

In order to provide any support, we would need to know which servers you are speaking of.

Sorry, I forgot to put in message..

This server,
https://www.gametracker.com/server_info/mc.serb-craft.com:25565/

Unfortunately, that still does not tell me what information you consider to be inaccurate.
i.e. Name is '<name>' name should be '<name2>'

I suggest that you read Minecraft Scanning - Adding Minecraft servers to GameTracker for possible solutions.

https://www.gametracker.com/server_info/mc.serb-craft.com:25565/server_variables/

hostname is changed from
SERB-CRAFT Network (1.12.2) *ZIMA ZIMA E PA STA JE*
to
SERB-CRAFT Network (1.12.2)

version is changed from
1.12.2 with 1.8 PvP
to
1.12.2

?

What happens?

The best I can do is direct you to our advice pages as posted above, or create a post in the game forum Minecraft Server Administration & Help in the hope that other members can offer you advice on your configuration.

Can you direct us to web developers of CVAR scanner, if there are any.
Minecraft do not have problem with this, because on other site, data is right and is changed once a day. On your site, this data is obviously changes ONCE A YEAR!

Thanks in advance!