Hello buddy,
This is a known issue since Xiaomi API seems to require a CAPTCHA for log in and changes need to be made in the integration Xiaomi integration in order to make it work again:
It looks like Xiaomi now requires a CAPTCHA, see here for potential fix (required code update): PiotrMachowski/Xiaomi-cloud-tokens-extractor#129
Many posts have been opened about this topic, I suggest you taking a look at them. There seem to be workarounds to make it work while the integration is broken:
Hope you get it working! 