It seems pretty improbable that the server is running out of memory. There are only a handful of forms, and none of them have more than a dozen entries. Additionally, all forms show up perfectly with all data in the admin panel, it only fails when you go to export, but then it never happens with any consistency, some formats can succeed (like json) where others failed (like csv) I think if the problem were that the server was hitting its memory limit certain forms would succeed and others would fail, probably at even showing the data in the admin panel.
Additionally, our php memory limit is currently set stupidly high, at like 250mb I think. So I should probably look into why that is, but suffice it to say that this doesn’t seem like the issue here.