CWP7Pro - Problems In Going Live from Start

In this scenario I have a dedicated server with CentOS 7.

Step 1: I installed CWP first and then purchased Pro license.

Step 2: CWP7Pro was updated on CWP but wasn't accessible through https:// links. Neither for admin nor for a user.

Step 3: After spending some time I had to go for the paid support. And finally the links were accessible through https://.

Step 4: We found one problem of reverse DNS configuration. That was fixed through dedicated server provider.

Step 5: So by this time all the urls were accessible as per the convention as we all know: https://subdomain.domain.com followed by the respective ports for each admin and user.
Basically all URLs by the host name were working. Host name here is 'subdomain.domain.com'.

Step 6: So far I neither create any account nor a user.

Step 7: Now I decided to create one admin account for the main domain www.domain.com taken from the host name as mentioned above.

Step 8: I went on and created one admin account for the main domain www.domain.com.

Step 9: And then thought to host this main domain as well.

Step 10: Once the account was created then I created the user as well to host the main domain.

Step 11: There I installed WordPress. And the installation went fine. However the site wasn't accessible at all!
By default the site at https://www.domain.com was pointing to https://subdomain.domain.com and which was nothing but Test Page of CWP control panel.

Step 12: After spending some time on it and trying some suggestions found on net the problem remained as it was.
So I decided to create another sub domain 'test' on the main domain and test again.

Step 13: I did that and generated the SSL certificates as well for the new sub domain which was supposed to be accessible thorough the link like https://test.domain.com. But again this time site was failed to show since the browser is throwing ssl exception.

Step 14: to post all this on this forum so anyone of you reading it might have some clue where the problem is?

I know there are great people around who are much ahead in making this kind of setup up and running.

For your kind suggestions please.