Martin et al;
I get the above error message in my outline logs when I add an assignment and before the user uploads the file to complete the assignment. After uploading, it goes away.
The trouble is that before uploading, it cuts off from the outline logs anything that comes after it, almost as if it was an html table formatting problem, if you know what I maen, and the browser was refusing to "print" the rest of the page.
I'm using 1.07, in the middle of teaching a class. Any quick fix that won't trash all of my data?
Thanks!
Thom
I'm pretty sure this was fixed in more recent releases. An upgrade could be in order.
1.0.7 was an age ago now so I can't remember, but does it help if you visit the assignment submissions page first? (without necessarily providing any feedback)
No, I've tried that. It doesn't seem to help at all.. 
I'm getting this error too using version Moodle 1.0.8.1. It seems to have happened after we made an assignment that students started to use unsuccessfully (the weer using lab computers to upload their work and the browser session took forever, then timed out).
Any ideas anyone?
I think I've got this fixed, but wanted to wait for confirmation. Watch http://moodle.org/bugs/bug.php?op=show&bugid=549&pos=1 for more info.
Upgrade?(....hair stands straight up on head in terror! )
But..but..everything else works!
But..but..everything else works!