Widgets keep loading endlessly

Cannot load all the site origin widgets when I try to edit the content.Pop-up box just show the sign of loading and other than that, everything is blank.

I try to search in the forum and found that someone facing the same problem. But the solution given not working for me. Already disabled all the non-siteorigin plugin but it doesn’t help.

Appreciated if someone can share their experience.

Thank you so much.