You've opened too many apps and you want to close some. You can use the multitasking disable feature on your device.
Here's how to disable multitasking on your Wiko Robby phone:
Step 1: Tap the multitasking touch button, which displays the previously opened apps.

Step 2: You can choose the app you want to close or you can close all of them.

Wishing you all the best.
