Go to your watch Settings > Reset to reset your TickTalk watch, then log out of the TickTalk App. When you reset your TickTalk, all the App settings will come back like contacts, settings, and reminders. However, you will lose photos and history messages from the watch interface and will need to re-enter the Wi-Fi password.
After the watch reboots, log back into the App, send a message from the App to the watch and once you receive on the watch, send a message from the watch to the App.