this error (A required parameter (backup_unique_code) was missing) seems to have occurred several times in this year's postings - many people have reported it, but none of the threads I've been able to offers a solution. Everything ends in "Oh, good, I've solved it" without explaining how.
Could some kind soul please pick this call up and explain what's wrong and how to get rid of this annoyance?!
The error affects only SOME of the courses while others back up without a glitch.
Moodle 1.9.5 (Build: 20090520). In Notifications, there is one message that might have something to do with the error, I suspect:
In any case, I cannot instantly change this setting, as the server is managed by a tech support team that is extremely unsupportive (pun intended).
Looking forward to hearing some good news - like, here's what you need to do, etc.