I cant figure out what im doing wrong 
Why is my pi crashing ?
What are you doing when it crashes? We NEED some info here to provide any meaningful assistance? Has it always crashed? When did it start crashing? Help us to help you.
Sure thing…
It has not allways crashed, and it crashes while changing skin settings.
To what skin?
Sorry! Black Glass Nova (Installed from default xbmc repo)
sudo systemctl stop mediacenter
mv .kodi .kodi.backup
sudo systemctl start mediacenter
Does it still crash while changing skins after doing this?