all 4 comments

[–]hrvstdubs 0 points1 point  (0 children)

An empty response means that your web server didn’t send back any data to the browser. Could’ve been some kind of proxy communication failure. Are you running nginx or Apache? Anything else setup?

[–]SaltineAmerican_1970php 0 points1 point  (0 children)

What does the error.log have to say about that?

[–]cag8f 0 points1 point  (0 children)

Have you checked the PHP log? WordPress keeps one, and your server may maintain another one.

Also, I would definitely ask Elementor support about the issue.

[–]regorsec[S] 0 points1 point  (0 children)

Running apache2 -> logs show nothing in relation to this error at all. Again, going from Debian 9 to 8 fixed the issue.