WebUI Validate Config: Failed to load data from backend, check webserver

When trying to validate config on WebUI, it gives me an error: ‘Failed to load data from backend, check webserver.’

I tried Google Chrome and Firefox and it has the same issue. It started a few days back.

./validate.php from console looks fine:


Component Version
LibreNMS 22.5.0-32-g69a03bd
DB Schema 2022_05_25_090027_drop_widgets_table (241)
PHP 7.3.33
Python 3.6.8
MySQL 10.5.16-MariaDB
RRDTool 1.4.8
SNMP 5.7.2


[OK] Composer Version: 2.3.7
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct

Does anyone have similar problems or know a solution to this?

Thanks in advance

We have the same problem.

same problem here also

Same issue here as well…

i’ve the same issue too, no matter which browser i use : Firefox , Brave, Chrome or Opera.
in my case i thought it was a problem of the varnish cache, since i’ve implemented a varnish service inside the same server , and i was trying to bypass the url from there. also created a section in nginx under conf.d / librenms.conf which would allow that /validate URL , but i ended up on the same result.

Same here, using the docker image. The log says
production.ERROR: Undefined offset: 1 {"userId":1,"exception":"[object] (ErrorException(code: 0): Undefined offset: 1 at /opt/librenms/LibreNMS/Validations/WebServer.php:54)"}

still no solutions ?