Solidworks Simulation Stress problem ! help !

hello everyone,
i hope you all are doing well
i have a little problem in simulation, i made a wishbone arm and i am making a simulation for fiberglass, aluminium alloy 1060 and Stainless Steel, but i am having a failure of the arm which means very high stress higher than the yield, first time i run it before modifying the shape into a better one i got some decent results, but now i am not
I need please your help to locate what the problem is ?
the file is attached

SolidworksSimulation