Mandatory information about my setup:

Have I searched the tickets before posting? No
Have I searched the forum before posting? No
Have I read the documentation before posting (which pages?)? No
Joomla! version: 3.4.1
PHP version: 4.0.10.7
MySQL version:
Server: Localhost via UNIX socket
Server type: Percona Server
Server version: 5.5.40-36.1-log - Percona Server (GPL), Release 36.1, Revision 707
Protocol version: 10
Server charset: UTF-8 Unicode (utf8)

Matukio version: 5.1.3
Direct link to the page that shows the issue: http://www.escapeartfest.com.au/what-s-on/calendar2015.html
Please go to August or September when the events start.

Description of my issue:

The calendar used to show to all public non logged in users and now it shows only to some. I need this to be completely public.