problem installing bitdefender on older laptop - redirect from central login gets flagged

I have bitdefender installed on my current Mac laptop and it's working fine. But, I have an older laptop and I wanted to install bitdefender on it to be able to run a complete scan.

However, when I try to log in through bitdefender central, I put in my password and code, but instead of taking me to the control panel, the redirect gets flagged as not being a private connection (and when I checked further, it says the certificate is expired).

I tried installing the software, and if I do the login there, it doesn't work either. I cant see the dashboard


So now, I'm not sure if that computer is already compromised, or if there is something simple im missing. Any help would be great.

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