I'm able to resolve that issue and getting version mismatch issue while restoring data to new server. See below error
GitLab version mismatch:
Your current GitLab version (7.10.5) differs from the GitLab version in the backup!
Please switch to the following version and try again:
Hint: git checkout v7.9.3
I tried to install 7.9.3 version but i didn't found any omnibus package and gitlab varsion using Link. Could you tell me how can i install this version is there any specific link you want to share with me or is there any alternative way to upgrade the glitlab version.