Failed to initialize or reconstruct the key. Share doesn’t exist

We recently encountered an issue on some accounts where we faced the error "Failed to initialize or reconstruct the key. Share doesn’t exist " during login.

Initially, we thought this error might be due to users creating their accounts with their email on the test net and therefore unable to log in on the main net. However, the user claims to have created their account on the main version.

what could be the reason for this error, and how can we resolve this issue?