Need to reinstall after launcher upgrade?

After launcher upgraded itself, crashed on checking game files.

I just clicked on “download latest launcher” button and run downloaded exe file named “starconf_launcher_arc_1.0.1.79”. Launcher upgraded itself, launched and then popped up message box. It said something like that the ArcSDK.dll is wrong. After few attempts to start game the files validation passed, but when I clicked on Play button, another message box appeard. “Fatal error: Please launch star conflict from Arc.” But there is no Launch button only Install.

So? Do I really need to reinstall the game?

Thank you in advance.

Delete appinstallconfig.xml from folder \My Games\StarConflict\