Trouble with viber on iphone?

Before my viber worked fine but then it stopped working so i reinstalled the app and it tries to sync contacts but it takes ages and eventually fails and says i don't have connection or something when i do. I tried to reinstall it like 5 times and still th same, Tried restarting phone, tried all the obvious. I have a feeling its a problem with the newest version but don't have an older version of the app to try

I have the same problem, no solution found. I get
"Sync Failed"
"The sync with your contacts has failed. Please try again."
Buttons: "Try again" or "Cancel"

Tried to reinstall, deactivate, activate several times no solution.

Same to me…

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