Trigger wizard does not show operators for variables

Thank You, Nejc, however, that is not the solution. 

If I click "Wert" (Value) there are three entries: "Value", "Variable" and "Random". I tried all of them, but none of them gets the expanded Trigger Wizard with Operators to choose from. 

What I need is the window with "Action", "Variable", "Operator", "Value", "Condition", "Object" - if you know what I mean.