You wrote "it has somehow broke my menu bar! now nothing work!". Unfortunately that doesn't provide any helpful info where to look for the error. Now from the screen I can see there are script errors, and the eng.log file will be full of them, and may contain other hints what's wrong.
Try reinstalling, this seems like the files are corrupted. When reinstalling, be sure to uncheck the "demo data" option, but it should be off by default. Also, delete the two cfg files.
Btw there seem to be many texture files missing, but those may be from outdated imports.