you can find the installation files like this:
Start the game from steam and the "Launcher" will start.
Click on "Game Settings" and click now on "Show in folder"
Se attached picture
have fun
My solution was to use the other "Crew Skill Informer" (activation: BACKSPACE) that are included in Aslain's pack until a fix are released.
It's a nice mod to have imo.
"To report a bug or problem, please post a new topic in this section and include following things:"
https://aslain.com/index.php?/topic/9-how-to-report-a-bug-or-issue/
I had the same problem and my solution was:
Copy MODS and RES_MODS directorys, after that UNINSTALL Aslain modpack and copy back the MODS and RES_MODS.
After installation of Aslain package copy directory MODS and RES_MODS in World_of_Tanks directory and save on your hard drive.
After that uninstall Aslain package and copy back the MODS and RES_MODS to WOT directory.
Play and you probably will not have any issues.