[Closed] XML-RPC Error (623): When access to moodle content

I'm using:
Joomla 2.5
Moodle 2.2.3
Joomdle 0.8

I follow the tutorial integration you have in this site with no problem. At the end i did the System Check in Joomla, and everything was ok.

Before the integration, i already had 3 courses created in moodle, and one user besides admin.

Then in Joomla i migrate Moodle Users to Joomla.

My first doubt is: Should the user be as Joomdle User's, the ones that will access to moodle contents from joomla?

Then i created a new menu to access to Course List.

When i click the menu to access courses list i got this error:

XML-RPC Error (623): Calling parameters do not match signature

What could it be?

I already follow this checklist:
www.joomdle.com/wiki/System_health_check...ur_PHP_configuration

And everything is ok configured, and the error continues.

Problem solved. I don't know what was wrong. But i installed everything again and everything worked fine, so i must have failed some step in the process.