Hello everyone, in past few days on EU forums, there have been numerous threads, asking about the same thing – “I see this weird Russian pop-up in my garage, what’s going on and what does it say?” It’s a mod thing. Basically, you are using some modpack (Aslain’s and Jimbo’s packs were mentioned, but I am not sure), whose authors used/stole mods from another modpack, the Russian “ProTanki” one. This message is a warning from the authors of the Protanki modpack that the modpack you are using contains their mods (without permission), they are asking you to use their Protanki modpack instead. This message does nothing, your mods won’t stop working, it’s just an annoyance. You will not be punished or anything.

More...