Error 503 when registering a new user.

[ComposerizeAllTheThings]

Creating a user returns 503 error code, while it is still created and logged in.

curl 'http://192.168.178.X/user/register' \
  -H 'Content-Type: application/x-www-form-urlencoded' \
  -b 'session_token=......... PHPSESSID=e3c0a7825d01a1acb684ba717c72c386; visited_products=%2C67%2C122%2C16%2C106%2C44%2C37%2C72%2C' \
  --data-raw 'first_name=test&last_name=test&username=test&email=test1%40mail.com&password=test&password_confirmation=test' \
  --insecure

Returns
503 Service Temporarily Unavailable

[ComposerizeAllTheThings]

rapid7/hackazon#15