Issue in restoring the courses backup

While restoring the courses using BRCLI Plugin, blank courses were create in moodle. Kindly find the log for your reference and help us to solve this problem.

root@oldcourses:/var/www/html/admin/tool/brcli# php restore.php --categoryid=490 --source=/var/mount/AE_Coursebackup/
Restoring backup of the 1/2 course...
instantiating restore controller 5472b4243b6b6925ecc5ebbb7a3b9b2e
setting controller status to 100
loading backup info
loading controller plan
setting controller status to 300
applying restore defaults
Unknown setting: questionbank
setting controller status to 400
checking plan security
setting controller status to 600
saving controller to db
calculating controller checksum d630193b950faa58a75cd6dc3b037c21
loading controller from db
Restoring backup of the 1/2 course...
instantiating restore controller 89e1207e6dda54e8229c1677e8b50960
setting controller status to 100
loading backup info
loading controller plan
setting controller status to 300
applying restore defaults
Unknown setting: questionbank
setting controller status to 400
checking plan security
setting controller status to 600
saving controller to db
calculating controller checksum 317a0829cfae9a62fb36427f6cc884a9
loading controller from db
Done!

root@oldcourses:/var/www/html/admin/tool/brcli#