I am having this exact same issue. Started about 2 hours ago. Was using #7
I tried to join a stronghold and got an error. clicked the Battle button and nothing happened.
Closed WoT and reopen failed before getting to login.
Restarted computer (alienware alpha) and it took longer than normal like something was messed up.
Removed and reinstalled WoT. Can log in fine. Loaded mods #10, cannot login.
Deleted mods, can log in fine.
Aslains_WoT_Logs.zip