Screen greyed out when trying to save an element

I installed the Pagebuilder plugin yesterday and, from the second I started using it, it won’t let me save anything. It only seems to be happening with certain elements, such as image and text box (List worked fine). I add the element in Pagebuilder and edit the options. When I click save, it closes the editing screen, takes me back to edit the page, and shows the added element, but the entire wordpress screen is greyed out and I cannot click on anything. If I scroll down, it shows ‘undo’ and redo’ arrows, but no other options. I have tried uninstalling and reinstalling this plugin and it is version 2.3.4.
Any help is appreciated!

https://www.ads-software.com/plugins/ig-pagebuilder/