eModal Javascript Error: Cannot call method 'split'

Hi,

It seems that this plug-in would be great for what I am looking for.

I just installed it and when I tried to use it, I got the following error:
Uncaught TypeError: Cannot call method ‘split’ of undefined.

I am trying to use this plug-in on the website premiumhomes.ca, however I cannot keep the plug-in active because with the javascript error, part of my page will not load. The part that does not load is my header which contains my menu, so its very important to the page.

Please let me know if you can help.
Thanks

https://www.ads-software.com/plugins/easy-modal/