I installed the plugin on moodle 2.7.2 and on another server have bbb version 0.9. I tried to connect moodle to the other server using bigbluebuttonBN version 1.0.11. I have defined url and security key successfully on the plugin. After scheduling a session and want to reach the class, internal server error appears. It seems that this error happens on the moodle side since the url of the page indicating error shows it exists in moodle and ends by "/mod/bigbluebuttonbn/view.php?id=3702", for instance.
I searched in your previouse suggestion on the same issue and tried blindsidenetwork test server. I got the same error by using http://test-install.blindsidenetworks.com/bigbluebutton/ as url and 8cd8ef52e8e101574e400365b55e11a6 as the security key.
Before that, I had used bbb version 0.81 successfully on the same both servers with the same configuration. just the moodle was on version 2.7
I wonder if the plugin has compatibility issue with moodle 2.7.2 or anything else.
Your guidance is highly appreciated.