"IC0503: Error from Canister rghji-ciaaa-aaaag-ak74a-cai: Canister trapped explicitly: Panicked at 'called `Option::unwrap()` on a `None` value', src/main.rs:119:36"

[everySunshine]

An error occurred while requesting backend data。

[jennifertran]

Sharing the code to the get_user backend function would be helpful here.

The error seems to indicate that the get_user function is returning None when it is not intended to. In your get_user backend function, I assume that you need to wrap its return response in Some().