Hello DKsoe and welcome to the BlackBerry® Support Community Forums.
Sorry to hear you are having issues with your BlackBerry® Bold™ 9790 smartphone and WhatsApp messenger.
Delete WhatsApp then reinstall it (Go to Options>Device>Application Management to delete it then download it again.
If the same issue happens after reinstalling then you will need to contact WhatsApp support (as we are unable to comment on 3rd party apps.)
If you downloaded WhatsApp from BlackBerry App World™ then see KB27706 How to contact support for third-party applications purchased using BlackBerry App World on a BlackBerry smartphone for contact information.
Hope this answers your question.
-HMthePirate
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