Unable to set custom library background. Kodi Freez

[x ] I have checked if I am using the latest version of Grid at the time of opening this issue
[ x] I am running a Kodi version that is listed as compatible in Grid's README file
[x] I have checked if all of the required add-ons are installed on my system
[x ] I have checked whether this behaviour is also present in Kodi's default skin
[ ] I have screenshots or a video for further explanation. I have included a link to the image(s) or video in my description
[ ] I have a debug log for (further) explanation. I have included a link to the log on pastebin.com or similar service in my description

jeroenpardon / skin.grid