Hello,
I get this when trying to create a dialogue from Student side (with the teacher).
strangely enough I was not getting the same before, not sure what changed, if I am missing something.....I recall I could create a dialogue without problems from student side too...
I found this old forum posts for the same where it was said to be a bug?
http://moodle.org/mod/forum/discuss.php?d=78228
I am experiencing the issue in ver 2.2.5
Thanks in advance
Imbu