@Fitz_Hoo is right! I just wanted to give a more detail explanation that fix my issue. Essentially GitHub deprecated their password authentication recently (you can read more by clicking here)
Now instead of adding your username/email and password, you will login with your browser. The image below is the new interface. As Fitz_hoo mention, you must update your git to see the new changes!
If you are using window, you can simply use this command below to update your git:
C:> git update-git-for-windows
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