Error when saving posts/pages on WordPress

Resolved

Degraded performance

Started 8 months ago Lasted 6 days

Affected

Core

[Sever] mercury-lon1

Client websites

Updates

Resolved
September 27, 2023 at 3:50 PM
Resolved
September 27, 2023 at 3:50 PM
This incident has been resolved.
Monitoring
September 25, 2023 at 10:29 PM
Monitoring
September 25, 2023 at 10:29 PM
We implemented a fix and are currently monitoring the result.
Identified
September 23, 2023 at 4:14 PM
Update
September 23, 2023 at 4:14 PM
We are continuing to work on a fix for this incident.
Identified
September 21, 2023 at 12:24 PM
Identified
September 21, 2023 at 12:24 PM
We're aware of users seeing the following error when saving a post/page on WordPress sites on our shared platform:

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

This is caused by an Imunify360 modsecurity rule and is listed on their status page here: https://cloudlinux.statuspage.io/incidents/4vm83v1330zv We will provide an update shortly.