Avalanche Console 6.1 - Configure Package: Install java

Hello,

I have a Windows Server 2012r2 running. Java 8.45 is installed. I-Explorer version 11.0.9600.17801:

When I want to edit a package, it shows me "Install Java"

Java configuration:

Java content in browser: enabled

Exceptionlist: http://localhost:8080

I-Explorer configuration:

Local intranet medium-low

Any ideas ?

Markus