Should an app no ??longer work properly on the Huawei smartphone or display error messages, it can help to clear the cache of the individual app. This deletes temporarily stored files that may have overlapped and lead to functional restrictions.

Android 10 | EMUI 10.0
Step 1:  Open the  settings
Step 2:  Tap on  Apps
Step 3:  Tap on  Apps
Step 4:  Choose an  App
Step 5:  Tap on  Storage
Step 6:  Tap on  Clear cache
  1. Open the settings
  2. Tap on Apps
  3. Tap on Apps
  4. Choose an App
  5. Tap on Storage
  6. Tap on Clear cache

Huawei Instructions