Cannot Use premium vpn subscription with other Total Security Subscription

hello,

Follow this article, the subscription of premium VPN is separate from other Security subscription.

"Is Bitdefender Premium VPN a different subscription?

Yes, Bitdefender Premium VPN is a separate subscription from the Bitdefender security solution one."

But, When I login Bitdefender VPN to my premium subscription, in Bitdefender total security agent will auto login to this email and expire total security protection.

How can I use two subscriptions (one premium VPN, one total security) on Windows machine?

Thanks,