Not able to view the particular GitLab merge request in my repository

Not able to view the particular GitLab merge request in my repository:

While trying to view my repository’s particular merge request as below mentioned error occurred. I can able to view remaining all the merge requests in that repository, error occurred only try to view the particular merge request alone.

Could you share your suggestions, how to resolve this issue?

Error details snap:

image836×804 29 KB

Difficult to solve on what you’ve posted so far. Please check all the log files under /var/log/gitlab for errors as this might help diagnose and find out where the problem is.