Error: FormatException: Unexpected character (at character 1) error code: 1015

Hello, First of all thank you very much for your application, I'm too happy that there is an opensource application to track the price of cryptos, thanks for your work.

I wanted to point out a small problem, it happens to me sometimes but I can't reproduce it. This message appears: "Error: FormatException: Unexpected character (at character 1) error code: 1015"

I use a samsung galaxy s7 (SM-G930F) under Android 11 (LineageOS)