Page contains an error, log is empty

I have a page that cannot be viewed. It throws a 500 error, and there is nothing in the logs. You can “edit” the page if use the id and call the editpage action directly (although it cannot be published). Similarly, the copypage action does not work. Nor does the pdfexportpage action. And while you can see the page history using the viewpreviousversions action, you cannot revert to one.

Looking for any tips on how to track down this rather annoying issue.

PS: I have access to the database.

We never did figure out why, The user recreated the page and I deleted the defective one.