Viber crashes or won’t open are usually caused by corrupted cache, outdated app versions, or device/software conflicts, so you need to fix the root cause step by step.
Start with quick fixes: restart your phone, check your internet, and update Viber to the latest version, since temporary glitches and outdated builds are common triggers.
If that doesn’t work, go to your app settings and clear Viber’s cache (and data if needed), because corrupted files are one of the main reasons the app freezes or crashes.
Also make sure your phone has enough storage and is updated, since low memory or old OS versions can cause apps to crash repeatedly.
If the issue continues, uninstall and reinstall Viber to reset everything completely, and check that permissions (notifications, contacts, network) are enabled.
These are key methods that we can offer. If you have more, please share.
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