WSOD and Drush cc all fail after deleting a view of a long-time-ago deleted module
Since I happen to know from WSOD afte uninstalling the Memcache module and deleting it&#39;s folder that you just stopped using Memcache, then I know that your Drupal site has just reverted back to using the database cache.

You probably had entries in your database cache from before you switched to Memcache in the first place.  Those really old database cache entries are now back in use.

You're trying to clear caches, which is absolutely the correct thing to do. However, there's a nasty bug in CTools that prevents you from clearing the cache if a particular CTools cache entry is broken: https://www.drupal.org/node/1775612

In this case, though, the manual fix is pretty simple. You need to truncate the cache table in your database. That should allow the cache to rebuild itself normally.