I can't add new task

I can’t add new tasks. When I right-click, the menu appears, but the “New Task” button is grayed out and I can’t click on it. If I go to the Tasks menu, I can click the “New Task” button, but nothing happens.

Please share screenshots or a screencast that illustrate the issue.

The problem has been resolved; I had to completely restart my computer, and the problem went away.