WordPress backend is broken

Clicking on elements within the WordPress admin site (the Edit button on columns, the Screen Options and Help dropdowns, even the ‘x’ to close notifications on top of the screen) does not do anything. I can’t get to the HTML for my columns or even get to the Help options. Clicking buttons for things like ‘Add Form’ still works.

Here are screenshots of the page:

https://lagunacanyon.org/wp-content/uploads/2019/04/wordpress2.png

https://lagunacanyon.org/wp-content/uploads/2019/04/wordpress.png

My site is lagunacanyon.org. I’m just trying to expand one of the columns (second screenshot). Usually a box will pop up with the HTML, but I can’t get it to show.

I have tried this on two different browsers over the past two days. Is anyone else having this issue?

The page I need help with: [log in to see the link]