• According to what we learned via Whatsapp. The Whatsapp -24 error is caused by issues with Android KitKat 4.4, not by the Whatsapp software.
• This mistake has been fixed in Android 4.4.1 KitKat and subsequent versions, thus if you use Android 4.4.1 KitKat or 4.4.2 Kitkat, you will not experience this issue. As a result, updating to Android 4.4.1 will resolve the issue.
• Some users stated that the issue was resolved when they used Clean Master App to delete all of the junk files.
• If your handset is running Android 4.4 Kitkat, Whatsapp claims that the only method to fix the problem is to delete the /data/data folder. However, there is a catch: to erase this folder, your smartphone must be rooted.
• If your phone isn't rooted, the only option to restore factory settings is to'reset your device.' Also referred to as a Power Reset.

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