Solution:
In the learner login final exam node learner marks are showing then click on refresh button multiple times which is in front of marks shown than click on certificate node and download provisional certificate. Then there is no issue. Learner will get hard copy of certificate.
If learner marks are shown in learner login and he/she is fail then learner have to give the final exam once again.
(Note: reschedule the learner for final re-exam).