Whatever it was, it has sorted itself out and I see it properly again. The error message I saw isn't because of ad blockers or whatever, as what they displayed

Whatever it was, it has sorted itself out and I see it properly again. The error message I saw isn't because of ad blockers or whatever, as what they displayed isn't the kind of output professional sites normally present to humans. But it's history now, so we're all good. Hopefully they can fix their error handler some day.