Error notice Updating failed. The response is not a valid JSON response

jgrispa

I am working on a website, updading some ACF fields on WP editor (not bricks). For some reason it all works fine when working on the regular site, however when trying to save changes to the staging site i'm getting this error: Error notice Updating failed. The response is not a valid JSON response

I've tried resetting permalinks and recreating htaccess file.
I used to have this site on another panel ait it was working fine. Is this related to Enhance Panel?

Anyone knows how to fix this?

jgrispa

Seems like i found the fix. Disabled Mod Security. Hope it heps someone else

twest

jgrispa really hard to get mod security configured to work with WordPress. I must have disabled a dozen filters and whitelisted a dozen paths, still run into conflicts, gave up because I figured by the time I could get mod security fully compatible with WordPress I'd probably have disabled 99.9% of it lol

BTW, another common reason that issue happens is because people are using emojis in posts, and their database table collection isn't compatible with storing emojis, gotta upgrade tables from utf8mb3 to utf8mb4.

I sometimes get the error message on very bloated pages too, pages with like +100 blocks on them. I'll just keep clicking save and it eventually goes through 😫