Right click the application and click Open. The same dialog will pop up but you'll be able to accept and continue. In the future a regular double click ...

Typically this can be solved by closing and re-opening the app. Sometimes waiting 1-2 minutes between attempts also helps.  In some cases, this message ...

To log in, your device's time must match that of our servers. Sometimes a device's clock drifts randomly so please go into your settings and make su...