improper range cst

Hi every body

i don't no why I can't simulate this CST MWS project
I have a need to an answer please

Something is wrong with your posted files, Improper range message is out, it siems you wrong defined y parametars for brin2, it sould be -5 for ymin and -1 for ymax, mesh should be finite in this case set to 20 cells per wavelength.
What do you want to simulate this structure is wrong defined look better in your paper.