Is this supposed to be happening?

So theres currently a bug in my game which came out of absolutely nowhere. No errors or anything not to mention the scripts were working perfectly fine for months until now. Any way is the stack end supposed to just keep going up like this? I’ve noticed that once the bug happens the stack end just keeps counting up infinite. What would cause this?

What is the line of the script that is referenced there at the stack end? RenderDrops:24

Is that even a script reference?