Site Broken with Fatal Error: Uncaught TypeError: array_key_exists()

Last week there was a problem with the site producing a Fatal Error on many different page visits.

  • I deactivated WooCommerce and it worked; there was no Fatal but the site was pretty useless.
  • A few days later, I attempted to debug the problem. It had gone away.
  • Sorry for any inconvenience.

The site is currently running with WP_DEBUG, WP_DEBUG_LOG and WP_DEBUG_DISPLAY all set to true. This is intentional. I want to see every Notice. Mind you, I don’t like to see them.

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