i can not open viber on blackberry passport

Notifications sound don’t work – Many users have found that the notification sounds seem to have stopped working completely.There are a bunch of BlackBerry KEY2 problems that users have come across that don’t have a workaround available and the only option is to wait for a software update to fix them. When it comes to issues with multiple device connections, only a future update will be able to address this problem.Go into Settings > Bluetooth and delete all prior pairings, setting them up again from scratch.Go to Settings > Bluetooth and ensure nothing needs changing.Ensure that you are not missing a vital part of the connection process.With issues when connecting to the car, check the manufacturer’s manual for the device and the car and reset your connections.Go into Wi-Fi > Settings > Advanced and make a note of your device MAC address, then make sure that it is allowed access in the router’s MAC filter.Make sure the applications and software on the device are up to date.Make sure the router firmware is up to date.Forget the Wi-Fi connection by going to Settings > Wi-Fi and long tapping the connection you want, then selecting Forget.Use the Wi-Fi Analyzer to check how crowded your channel is, and switch to a better option.Go to Settings > Power saving and ensure that this option is turned off.Then turn them back on and retry the connection. Turn the device and the router off for at least ten seconds.

I can not open viber on blackberry passport