If an app on the Xiaomi smartphone no longer works properly, it may be sufficient to clear the app cache, but this is not always enough, in which case we can delete the app data or memory.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Apps
Step 3:  Tap on  Manage apps
Step 4:  Choose an  app
Step 5:  Tap on  Clear data
Step 6:  Tap on  Clear all data
Step 7:  Confirm with  OK
  1. Open the Settings
  2. Tap on Apps
  3. Tap on Manage apps
  4. Choose an app
  5. Tap on Clear data
  6. Tap on Clear all data
  7. Confirm with OK

Xiaomi Instructions