Root element is missing error Multiterm 2017

Hi,
I keep having a Root element is missing error when I try to start Multiterm 2017. I did see this (community.sdl.com/.../4980), but although I deleted some xml files I found in the Multiterm12 folder, I still have the error. I also did reinstall Multiterm, but it still not working...
Any idea of what to do?