Problem with Nagvis on Icinga2

Hello,

We had a actually a virtuell Server with Icinga2 and a working nagvis. But this made someone how don´t work here anymore and he don´t write a Documentation.
So i make a new Server and have only this Error

i install Icinga2 on a Centos 8 OS. It works all only the nagvis don´t work…


I used the newest PHP and Icinga2 version.
Maybe someone can help me to fix this?

sry for my bad english but i hope you can understand what i want

Thanksfully

Steffi

Did you follow all the steps in https://github.com/Icinga/icingaweb2-module-nagvis/blob/master/doc/02-Installation.md ?

I have seen this error typically when forgotten to change the cookie path or haven’t restarted the browser, when I remember correctly as I have not installed NagVis for a while.

Hi, are your database permissions set correctly?