Xiaomi Cloud stopped working.

It happened suddenly. I can neither log out of the cloud nor access the synchronization settings. Clearing application data does not help. Error code:
java.lang.RuntimeException: An error occurred while executing doInBackground()

at android.os.AsyncTask$4.done(Unknown Source:27)

at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:381)

at java.util.concurrent.FutureTask.setException(FutureTask.java:250)

at java.util.concurrent.FutureTask.run(FutureTask.java:269)

at...

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