by Pradeep Nayak.
Hi Emma Richardson,
Thank you for the reply.
I have deleted the course which is created during incomplete restore process and than again I tried to restore it but still not able to complete the course restore.
I have changed the max_execution_time to 60 and checked but than also I couldn't get the proper error message.
The course back up which is used in restoring process in staging is used in live server as well. But the restore process is successfull in staging but not in live server.