Unable to activate peacock - Something unexpected happened Please close this pop up and try again

I am unable to activate peacock subscription. When I hit the activate button, I get this error

"

Please close this pop up and try again. If the problem persists, try again later."

Looking at the network traffic in the browser, I see this error

{
    "errorCode": "XCSCP.405.1.1",
    "errorMessage": "Cas client: already activated or no entitlement found",
    "severity": "ERROR"
}

Could you please help activate my peacock subscription?