Hey all I've been battling to solve this issue for the last few weeks. I noted a few other resolved cases for the same error, but those solutions have not worked in my case. For example:
1. Reinstall game (also deleting all application support folders)
2. Unintsall all modpacks, then install XVM only.
3. Go to modxvm.com disable all services, restart client. Then close client. Renable services, and start client again.
In all cases I get the same error in xvm log: [ERROR] No valid token for XVM network services
I only play on one laptop and only have a single WOT account.
I get the stats for tanks in the hanger, just no player stats and other XVM services in game.
I use Solo modpack.