retainer plate

Hey guys can anyone tell me why this is happening? Is it something to do with the strut assembly or just the bearing/ retaining plate. I recently replaced the front suspension but had to use the old bearings and retaining plate.

hey guys bought a vt ss 160,000kms 5,000 week ago got a noise a day ago like a ticking noise im a diesel mech and airplane techo. so not great with petrol , thought it was lifters being lazy did the engine flush new oil nulon lifter eze , and caboom! noise become loud so shut off pulled off...