cant create account fee_paying_account->is_lifetime_member():

[well.attenuated]

So only lifetime members can register additional accounts?  This doesn't seem like a good idea at all.
I have experienced this same problem today trying to register a second account to my wallet.
We have been told that the only way to conceal our full balances is to have a separate anonymous account but can apparently only register an additional account if we are a lifetime member?  If so, this should be added to the membership information page as a perk of membership; it is much more significant than cash back on some fees.

[Overthetop]

That means you should get the account upgraded first to the lifetime member.

Then, you can register new accounts by the old account.

[ByronP]

When trying to register a new account i keep getting the following error

fee_paying_account->is_lifetime_member():