i'll answer myself. I found the solution given in other thread:
Bertalan Voros in other thread:
*Did you have any roles configured?*
*Check your roles file (/etc/icingaweb2/roles.ini), I had to readd the user
used for our monitoring displays. It was fine after that.*
*I reinstalled it afterwards
After upgrading to the last icingaweb2 version (Ubuntu 14.04) I'm gettint
this message:
Welcome to Icinga Web!
Currently there is no dashlet available. Please contact the administrator.
Any idea what's wrong?
The application log says:
Stacktrace: #0
/usr/share/php/Icinga/Web/Controller/Module
