Hello, I’m testing this package, and I really like it because it has the features I need. However, when I try to set up a self-hosted combination with email and a second factor authentication using email-OTP, I receive the following message: "Account linking feature is not enabled for this app. Please contact support to enable it." I’m not sure what this message means. If it refers to a paid feature, I would like to understand why. My goal is to use everything in a self-hosted environment, with my own SMTP credentials, and I do not require any cloud services. I want to manage everything with my own resources.