I tried installing using 

https://www.openproject.org/docs/installation-and-operations/installation/packaged/#centos-7--rhel-7

and also docker

Nothing seems to work

Domain - http://portal.esolz.com

Not sure what is going wrong

Even configured the OpenProject as directed (without any error)

Hello Vikas, 

Centos7 support is currently broken for packaged Installations due to mismatch in a dependent package. We are working on a fix and will announce it on the release notes once it is reenabled (see this related post: https://community.openproject.org/topics/14672)..)

You can find our release notes here: https://www.openproject.org/docs/release-notes/

Best regards
Samantha