Hi Shekhar,
Please be aware that Paid Memberships Pro plugin allow you to restrict content from users who don’t have a subscription plan, but also non member. It seems there were already two plugins activated that restrict the content of the website. When activating PMPro, these was a conflict between these three plugins.
I deactivated Content Control plugin and BP Simple Private plugin. Now, all seems to work fine when PMPro is activated.
In case you need more help with Paid Memberships Pro, it’s best if you try to reach the plugin authors as they will be more informed and better suited to help you.
To go further, we invite you to post your request on their support forums: paidmembershipspro.com/support/
We remain available for all support requests related with the use of your theme.
Best,