Absolutely, I don't mind helping people out at all. As for how your account got unverified, it was most likely because protonmail closed your old email account. The forum software will often send automated emails to your email account from your ZooVille account, (new PM notifications get sent to mine, and there are other default settings that will send emails to your account's email, such as for watched threads and replies to your posts if they're enabled or selected.)Awesome. I still don’t know how my account got unregistered but I’ve got it back now. Thank you sincerely again @Mare Lover 1975 and @FloofyNewfie
However, if your email account is closed the forum software will get a reply from the email domain (e.g. Protonmail themselves) basically stating "this email cannot be delivered to this person" otherwise known as a "bounced email", which the forum software logs. Once this happens your ZV account will likely un-verify itself and basically ask, "Hey, is this email still good?" I might need to take a look at the un-verified notification banner text and maybe add "Check your 'Account details', if your email is no longer valid, to change it." to it. I'd imagine just adding that (which is likely very doable) will probably eliminate some confusion in the future.