Evenet calendar problem on multisite

Hey everyone first of all hey im vincent this is my first post here so sorry if i do something wrong Posted Image

I am working on this WordPress Multisite wich uses a AJAX/PHP event manager called 3C-Events calendar:

“Link tot their website: http://codecanyon.ne…calendar/242070”

and i have a problem. On the main website the plugin works perfectly all the events show up but now im working on the second site and all the venet i setup on that site are not showing up on the first page load. What i have to do to make it work is click on the next month an then back to the current month and then they do show up. I have now experience in programming so i have no idea where to look.

The site on wich it does work is:

http://www.danla.nl

and the second site wich is currently in maintenance mode can be found here:
http://danla.nl/shao…O7AruvpPSgfqsh4
if you look at the second site if you go to februari and back you will see the event show up.

I hope anyone can help me with this problem

thanks already.

Greets vincent