Found a workaround! Go to -Mods\aircraft\Ka-50\Liveries\Cockpit-Ka-50_2\english - and copy all 7 .dds textures there and paste them somewhere. Remove the "_ENG" (change "ka50_cpt_01_alb_ENG.dds" to "ka50_cpt_01_alb.dds" for example), do it for all 7 files and then paste those in the zip folder "Cockpit-Ka-50_2_Textures" in - Mods\aircraft\Ka-50\Cockpit\Textures - Make a backup before you do it just in case. Keep in mind that now the cockpit will be in english as a default.
If you don't wanna go through all that, here's a link to the edited "Cockpit-Ka-50_2_Textures.zip" folder
BTW in case you use any custom textures for cockpit in your "Liveries" folder, you have to rename your Ka-50 folder to "Cockpit-Ka-50_2" in order to see them in the special options in the game.
ouky1991's post in Warning lights flash in russian, even if the cockpit and the "turned off" textures are in English was marked as the answer