Object reference error, Important?

I built my level with brush boxes other than actors that need to move or interact because I need to use several deductive boxes on some of my walls. I then realized that I needed to be able to read tags from all objects that my player might be standing on so I replaced all of the horizontal platforms with mesh. Everything works great except on my event hit, it returns an error every time I come into contact with a brush box (Wall) from trying to reference “other actor“.

My question is, is it alright to ignore this error? If so is there a way to tell the engine to ignore it and if not than what’s the next best step?

Never mind, I didn’t realize there was a “Is Valid” that I could use. Just in case anyone ever comes across the same problem I’ll post a screenshot of my event hit.