Most likely, some of your files are corrupted. Therefore, if what Weegee said didn't work you need to download full client again and do a force re-check when your download will finish.
Let us know if it worked.
Player Drhannibal exists at x100 http://cp.pandawow.ru/en/armory/char-1-5816105.html but somehow when you're at Röwenn's profile it shows Drhannibal arena logs. I think it's website issue but it only happens with this 2 players.
Declined