me too, unfortunately - sad to read after the upgrade was made…
installing older one worked but cannot activate my account and now it gives me an error message indicating they disabled my number due to suspicious spamming activity.
what the heck!?
contacted the support - I think a bot replied because it has the same name as above but replied just to that part of the story that SailfishOS is not supported by Viber, not reacting that part I’m using it for years there, neither to the account locking issue…
wrote to mentioned Twitter account above - let’s see whether they do anything…