What is this error on my self-hosted "impossibile to reading properties (kfttype)"

When i try to make login with Desktop app i see this error.
Somebody can help me?

@Mattia Welcome to the forum!

Please post a screenshot the Dashboard of your Admin Portal, which displays your server version.

Also, please let us know what operating system is used for both your server and your client apps, as well as the version of the browser extension that you are using (from Settings > Abut > About Bitwarden).

Finally, please attempt to directly log in to the Web Vault app (e.g., https://mybitwardenserver.mydomain.com) instead of using the browser extension. If you are still getting an error message, use F12 to open the Dev Tools, and examine the Network tab.