Remote access issues have nothing to do with your account or account preferences. It’s also not linked to having a Plex Pass membership. Remote access is entirely about the configuration of your Plex Media Server, the host system, your router and possibly restrictions applied by your ISP (e.g. while your overall network environment might not have changed, your ISP might have stopped assigning your router a publicly routable IPv4 address or started blocking traffic through certain ports.
If you’re having trouble accessing your server from outside your home network you might want to take a deeper look at these steps. If that doesn’t actually help fixing your issue, you could still share the individual outcomes/findings to get a better understanding of your setup.
None of the above explains your trouble to (re-) install the Plex Media Server on your devices.