About Unite Revolution Slider 2
If you don't have access to extension support and current version anymore, that cost only $29 (unitecms -net). Maybe you should consider using different slider? Without paying anyone you can use Slideshow addon from SP Page Builder Pro. It's like with the Lego bricks, if one brick doesn't fit, choose different one, life is too short to be worry for 3 days. Besides URS2 so heavy, so sometimes it doesn't make sense to use it.
Please fix admin area first (tip above), then I can take look in general.