Try restarting your Mac in Safe Mode:
Turn on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.
Release the key when you see the login window, then log in to your Mac (this will take longer than usual).
You might be asked to log in again. On either the first or second login window, you should see ”Safe Boot” in the upper-right corner of the window.
Once it's completely done rebooting, restart your Mac normally, then see if the problem remains.
That usually fixes it, and if it doesn't, there are other alternates you can try (but re-booting is Safe Mode is the easiest).
