Open your phone's settings. Look for the Storage section to open its settings page. Tap the Other apps title to see the list of apps you have installed. Find the app whose cache you want to clear and tap its list. Tap the Empty Cache button.
On Android smartphones and tablets:
Step 1: Go to your device's settings (either from the desktop or from the app list).
Step 2: In "Applications", select "Funbridge" from the list
Step 3: Click on the "Force Shutdown" button (optional: click on the "Empty Cache" button) and validate. Quit and restart Funbridge from the list of applications.