Notification on the badge icon but I have no new messages!

I updated the app. Now, the badge icon says I have 1 new message when, in fact, I have none. I uninstalled and reinstalled the app and the notification as still there. I deleted every message and phone call from the logs and I still cant get rid of the notification on the badge icon. Please fix the issue!

Audit131 about Nextplus: Private Phone Number, v1.6.4