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The issue is actually unrelated to Event Gallery. You include jQuery in your page. Since you're working with Joomla you need to make sure jQuery works with MooTools. You can achieve this by adding the jQuery.noConflict(); statement after each jQuery include. This will fix Event Gallery as well as every Joomla feature which is based on MooTools. Unfortunately many Joomla plugins/modules do not respect the way Joomla works and cause such issues.

Side note: Event Gallery 3.3 will work without MooTools.

Well.. updating to Event Gallery 3.3 will help for this particular issue. But since it is invalid to include jQuery in this way while using Joomla you'll encounter other issues as well.

The best solution is to do a full text search for "jquery/1.8/jquery.min.js" over all your files and ask the developer of the file you found for a proper solution.

Please don't throw in more of those tools. Just start with finding the cause of this issue. That's the actual jQuery include. Please do a full text search in all the files of your Joomla installation for "jquery/1.8/jquery.min.js". Once you found where the invalid include of jQuery happens we can start fixing this.

Okay.. forget about this jQuery stuff. I was a bit too fast :) Seems like the issue is caused by those lines:

window.addEvent('domready', function(){
		RokSprocket.instances.grids = new RokSprocket.Grids();
});

window.addEvent('domready', function(){
	RokSprocket.instances.grids.attach(272, '{"animations":["fade","scale","rotate"],"displayed":[]}');
});

That needs to be fixed first.

Did you see the screenshot I attached to the last post? Whatever you unpublished did not had any impact on those lines. They are still there and causing JavaScript errors. This prevents any other scripts on the page from running. This includes the layout scripts from Event Gallery.

Did you unpublished the module RokSprocket: Grids Layout Mode? I'm not familiar with those things but it might happen that this helps.

In addition you can try to reach out to the guys from rockettheme.com to get some help. Those JavaScript errors do appear on all of your sites.