website problems

Have a website (for more than 5 years), and when I look for it on Google, it has the 'grey' tick;.  I just tried to get it verified by Norton, but, problem is that, apparently, I'm still the 'e-mail person' I was from years ago.  I don't have that address anymore, and certainly not the p/w for that (two computers later, tho' still have full Norton coverage on my current e-mail address)..

 

So, how do I change this so that I can apply for a 'not grey tick' on my website?

 

As you probably realise, I'm not a 'tech' person., and would very much appreciate any assistance.

 

Thankyou.

Tired.