League of Legends Screensaver

After applying it and choosing settings so I can set it up, I get this:

https://i.gyazo.com/becdd38bd5fe706b3c7e424e097f49f2.png

With these errors:

https://i.gyazo.com/7d3fd0475d746b7414226a83cf5d64d9.png & https://i.gyazo.com/413f8e95ac114010813ca2a1bc185142.png

Was something not included in the download?

Update: After uninstalling it and then re-installing the Screensaver app it no longer wants to even open when I use the Settings option in my screensaver changer.

EDIT: I should probably note I chose the Windows download if that helps.

FINAL UPDATE: After a few days of leaving it alone I tried it out again... It now works.