In order to block a Google+ page, follow these steps: Go to the Settings > General > Account settings > Accounts > Select a Google account, and then click on Manage Google accounts to open the Manage Account page.
Click the link to the right of Manage account, which will open a new window with all of your Google accounts.
From there, click the link that says, “Block these accounts.”
This is what your Google account will look like now, after you’ve clicked Block these accounts.
If you don’t see this option in the Manages account, the account is currently in a state where it’s blocking all accounts.