the app cache stores data that is useful for a better user experience. for example, pictures are cached here so that they do not have to be downloaded again via the internet. however, the cache can also cause errors, as in some cases outdated or incorrect information has been stored. in this case, it makes sense to clear the app cache first. on the Oppo smartphone, this is done via the app management.

Android 10 | ColorOS 7.0
Step 1:  Open the  Settings
Step 2:  Tap on  App management
Step 3:  Tap on  App list
Step 4:  Tap on  App  you want
Step 5:  Tap on  Storage usage
Step 6:  Tap on  Clear cache
  1. Open the Settings
  2. Tap on App management
  3. Tap on App list
  4. Tap on App you want
  5. Tap on Storage usage
  6. Tap on Clear cache

Oppo Instructions