Received empty response from Moodle

Hi,

I am new with Joomdle. I installed Joomdle R0.7 for Joomla 1.7.x

In moodle it looks to work correctly but in Joomla it shows me this :



What do I wrong? I shouldn't know, what I have to do. Please help me.

Greets,
Jenny

Pls find this link to the list of error messages and suggestions on what to do.

www.joomdle.com/wiki/System_health_check