Typically that means you're signed in to Google with a non-Pace email address; usually a Gmail account. You might be logged into this account in addition to the Pace Google account!
The simplest solution
go to google.com
click on the icon in the upper right-hand corner
choose the Sign out of all accounts option
This should sign you out of all Google accounts on that particular browser.
Now sign in to your Pace Google account then use the steps documented above.
Press the home button to go back to the home screen
Open Settings.
Scroll down the list and tap Safari.
From within the General section of the Safari Preferences, tap the Block Pop-ups toggle to turn it off. The toggle should now be gray. When active, the toggle switch is green to indicate that Safari is blocking pop-ups.