Step-by-Step Tutorial Session 3 - Yaw Angle Study (Part 2)

I have been trying to find my mistake the whole day. I already looked over the step by step tutorial 3 times. Could someone help me find it? When trying to run the simulation comes the following message “Warning: some faces are missing a boundary condition assignment. If you choose to proceed, a no-slip wall boundary will be assumed for those faces.”

Thanks!

Vanessa