You probably have multiply copies of warcraft installed. If you have licensed warcraft, start it without gproxy and let it update registry keys. If not, open regedit and navigate to HKEY_CURRENT_USER/Software/Blizzard Entertainment/Warcraft III/ and set the InstallPath key to the path of your current 1.28.2 warcraft. This path and the wc3 path in gproxy should match