by Muhammad Tariq.
Thanks Mary Cooch and Rajneel Totaram. Thanks for replying. I agree that my Moodle is (very x100) old, I will be upgrading to newer version soon.
I followed the instruction in MDL-27638 fix. Instead of deleting the two mentioned lines, I commented them out (which in is programming is safe to do). When I logged to check the submission , the whole screen is blank (with nothing on it).
What should I do any suggestions?