If you are on Android
Your phone's Webview System application may not be up to date. You can update this application via the PlayStore by following this link : WebView application on the Play Store
We also invite you to update your Chrome application.
If you are on iOS
Make sure your phone is up to date with the latest updates. This will ensure that your Safari browser is up to date.
If you have installed the Chrome app, we also recommend updating your Chrome application.
Finally
If it still doesn't work, contact us!