Quite possibly but it’s unusual for it to run but not export.

Equally, there’s nothing particularly exotic apart from some long formulae and some heavy regex. But nothing that should really cause a fatal error.

How many results are there?
Does it export in any other format?

Other than that, I’d remove the formulae, export, and add them back in one at a time.

It won’t solve the problem but it will tell us where the issue lies. My guess would be age in basket but let’s see if we can optimise that one we know if it’s the issue.