WP Scheduler XML Error

I installed event calendar scheduler 3.0 on my wordpress site (for company internal use). When view the Scheduler settings page in the WP admin console, and also when I view the page that has the plugin I get an xml error.

This only happens in Chrome.

does any javascript error occur?
I guess it may be cross-domain problem. Do you use redirecting from site.com to site.com or vice versa?

This error is happening to me too… I’m using Joomla 1.5.26 and scheduler 3.0… It started today… yesterday it was normal…

And this happens with all browsers…

Same error here. Did you find any solution?