Hi @nicholaspetersen
From your error log, the only message related to ACF is this one:
[Mon Dec 19 16:00:49.341427 2016] [:error] [pid 29390] [client 45.76.3.112:59867] PHP Fatal error: Call to undefined function the_field() in /nas/wp-content/live/actioncardapp/wp-content/themes/actioncard/header.php on line 63
Could you please open a new ticket and provide temporary admin credentials to your site? If you can create a staging/development site and provide the credentials to that site, that would be better! That way we can do tests without affecting your live site.
You can open a new ticket here: https://support.advancedcustomfields.com/new-ticket. Also, please don’t forget to explain the issue again and provide the link to this thread.
Thanks 🙂
