by Iván Yivoff.
Regarding the "questionbank" thing:
In the error I see:
applying restore defaults
Unknown setting: questionbank
setting controller status to 400
Later on it says, reading the trace:
Error code: setting_by_name_not_found
$a contents: enrol_migratetomanual !!
!! Stack trace: * line 124 of /backup/util/plan/base_plan.class.php: base_plan_exception thrown
* line 97 of /backup/util/plan/base_task.class.php: call to base_plan->get_setting()
* line 159 of /home/ubuntu/moosh/Moosh/Command/Moodle29/Course/CourseRestore.php: call to base_task->get_setting()
* line 285 of /home/ubuntu/moosh/moosh.php: call to Moosh\Command\Moodle29\Course\CourseRestore->execute()
I see that the setting_by_name_not_found exception is thrown on get_setting(), and that is thrown because "questionbank" setting is not found, hence my thought that that could be involved.