By ggoogi on

After upgrading D5 to D7 (of course, to D6 and then D7), some nodes cannot be edited or accessed. 500 errors and no consistencies whatsoever. I should mention it's happening on Book pages ONLY. Errors inclue 404 (I know the page exists), 500, etc, and so far I don't see anything remotely consistent. I don't even have a slightest clue where I should look.

⋅ Categories: Drupal 7.x