Hi there,
so here's my trouble. I used Viber in Bosnia and Herzegovina, and now I use it in Austria, and it worked fine or me, all UNTIL I updated to the latest version, 3 days ago. Now I get a notification that I received a message and should "update to the latest version of Viber" to see it. There are still badges with numbers on the app icon showing how many messages I have, but the app itself is empty - no messages, no contacts (it starts to sync and goes on eternaly), and when I try to make calls manually to a friend with Viber, it says "there seems to be a problem connecting to viber's service." I am also doubting some kind of incompatibility with iOS 6.1 as my gmail server also stopped working as I updated my iPhone.