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Resolved Websites shown as Broken

zvangi

New Pleskian
Server operating system version
Ubuntu 22.04.5 LTS
Plesk version and microupdate number
Plesk Obsidian v18.0.75_build1800260102.11
Hi,

I host around 30 websites and half of them started showing as "Broken" on their own. This is the error from Logs tab from one of them. They all share this error.

Data refresh failed

Site data was not refreshed due to the following error: Failed to reset cache for the instance #13: An error has occurred when decoding JSON: Illegal Token. Cache tags: ["action-log-existence","main-information","ip","ssl-statuses","remote-agent-instance","cloud-linux-cagefs","cpanel-links","admin-credentials","admin-login-link","php","plugins","themes","config","nginx-caching","maintenance-mode","table-prefix","force-updates","security-measures","protected-dir","screenshot","virtual-patches","available-minor-update-version","virtual-patches-for-end-customer","plugin-modules"

I also get this error on those websites when I check site health tab on wordpress side

The REST API did not behave correctly
The REST API is one way that WordPress and other applications communicate with the server. For example, the block editor screen relies on the REST API to display and save your posts and pages.

The REST API did not process the context query parameter correctly.
 
Last edited by a moderator:
Hi @Sebahat.hadzhi Thanks for the follow up. I resolved the issue. The reason was left over malicious files under /wp-content/mu-plugins

Issue resolved after removing those files. If anyone faces this issue I would suggest them to check it out too. But weird thing is wordfence or immunify360 didn't catch those files as malicious.

Hello, @zvangi . Could you please temporarily enable Plesk debug mode and double-check what's been logged into /var/log/plesk/panel.log? Thank you in advance.
 
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