what version of osx are you using and what are the exact errors that you are getting please?
i am here i am doing a little research on things to try. You did not tell me what osx version it is though.
It looks like the best bet would be to add a new keychain and delete the old one
but there are some things to try on these posts
ok and this is the exact word for word error message ?
cannot find login for registrationV1
what are you doing when you receive it ?
hold on a minute please
the best solution seems to be deleting the keychain and creating a new one.
there doesnt seem to be any one reason for these problems.
sometimes its an icloud issue sometimes its a non apple app thats conflicting with it.
I can help you by remote if you wish
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