CFD Element Probe - Error

Dear Simulia community,

I am new to simulating physics in the 3DExperience and I am currently trying to do some CFD analysis. After meshing I frequently get the error message you can see below when I click on "model and scenario checks" and therefore I cannot start the simulation. Maybe someone can help me out because I have no idea how to fix this problem.

To specify my problem: It would be helpful if I knew what an element probe was...

Thanks in advance!
Lars Schier