Extend logmessages with the values of the variables.

When your system gets an error, it shows a lot of useful information. Unfortunately, it does not show the values of the variables. See this example:

In this case I would like to know the value of $Startaddress/Housenumber. Even better would be to have every variable available in modeler-view 'Variables'.

My suggestion for this idea: add the values of every error-related variable to the errormessage.