‘SiteOrigin Widgets Bundle’ causing error format in other pages in WordPress

Im not too good with word press yet. How ever i know that this plug in has caused issues. I only have this and 2 other suggested plug ins activated. When this site origin widgets bundle is activated it causes errors in some section. For example. I have the theme sydney installed. Everything works good except for when i click on “appearance” and then “widgets”. When i do that the format of the page is almost like old style words and they just over lap each other. I tried another theme and then on the edit pic section i got the same exact format. Something is wrong with this plug in and i dont know what it do. When i deactivate it its fine but i need that for alot of widgets to even work! :(