I recommend that you export your vault using the Norton Security client on PC and then go ahead with changing your Norton Account password. This way your vault data remains intact.
I am using my correct email and have not forgotten my password.
I would do that... can you tell me what to expect. Will I need to create a new password?
I am afraid to do this because I use Norton Vault mostly on my PC... I don't want to make things worse, in that my PC will not accept my password. If I somehow get locked out I am dead in the water.
From what you've mentioned, it appears that you are having a problem logging into your Norton Account. You can leverage the "forgot password" option on the Norton Account sign in page if you have forgotten the password and you are sure that the email address you've entered is indeed the right one.
As I said above, there have been some other issues with Norton apps on IOS 11. I do not have a device that can be updated to IOS 11, so I'll have to wait for a reply from my contacts. I'll let you know when I hear anything.
You say it has worked in the past. Did you recently update to IOS 11? If so, did the problems start after that update. There have been a couple of other issues with Norton products on IOS 11.