[fsurfer]

Thanks for correcting pavijan. 
Fsurfer , the path I mentioned was just an example.  The error you are experiencing isnt due to any error in the skin itself.
If you are on a portable install then just locate the user_data & addons and delete the skin helper widgets & old settings.
I am trying to help you out. if you dont feel comfortable then  thats alright.
good luck.

I have been using Kodi for a few years and without this Mod works perfectly well. So for you to say "The error you are experiencing isnt due to any error in the skin itself." just confuses the matter.

The error is skin helper. Any skin that uses it will have the error. The default skin doesn't use skin helper service. Unfortunately this skin uses skin helper and still has bugs due to Kodi Matrix

Hi, I am using Leia have not upgraded to Matrix

I like the style not too bothered with the new frills in home, which is easily bypassed and will use using Kodi core features.