Try the following:
Hope this helps.
Did you try rebooting and, if that doesn't work, uninstalling and reinstalling the app?
If that doesn't help then you'll have to contact 48 support for more advice.
Glad it helped @nahayo?
Did you have to uninstall and reinstall?
Not really sure why some people seem to have to do that but as long as it fixes the problem I suppose...?