ToC breaks my pages

Hello!

I’m using the Divi theme. Until a week or so, I had no problems with ToC. Then it started not showing at all (without me doing anything). Now not only does it not show, but if I try inserting a table, it breaks the pages (leaves them blank).

Tried deactivating, tinkering with the settings…nothing.

This is very strange and I have no idea why that happened overnight.

Anyone with any advice, please?

Thanks!