Can someone tell me why this error occurs?

JavaScript
5

the component

Captura de pantalla 2022-11-30 183955
Captura de pantalla 2022-11-30 183955723×523 17.8 KB

the code of usuarioAutenticado()

Captura de pantalla 2022-11-30 183916
Captura de pantalla 2022-11-30 183916965×524 24.4 KB

the result of the console and localStorage:

Captura de pantalla 2022-11-30 183804
Captura de pantalla 2022-11-30 1838041339×739 59.9 KB