Dropped my EGR blanking plate aggggghhhhh!!!!

Hi all, just replaced my EGR valve and accidentally dropped the old blanking plate I had in there to test it. It’s fallen somewhere and for the life of me I can find it. I know it’s not ideal but the fact that it’s not a tiny screw or something that could wedge somewhere dangerous... if I can’t find it,is it an issue? 

I’m stupid I know!

Thanks