When you receive a message or any other notification beside the app there is a small red sticker, which so you don’t miss anything important. But what if all messages are read, and the notice continues to be displayed?
Usually this situation occurs when a bad Internet connection. In that case, if the force quit and restart does not help, try the following:
- Find “Terminal” in the Utilities folder or using Spotlight and launch it.
- In the window that appears, enter the following command:
After this, the dock will restart, and our problem should be solved.