[SOLVED] Sign Up with Username ERROR

Hi again! I follow the instructions of this video: https://www.youtube.com/watch?v=aYi1_moT4kI&t=315s&ab_channel=MoralisWeb3 and my console display this error: Cannot set properties of null (setting ‘onclick’). Im going to paste my code:



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There is a typo. Change singup to signup to match the button id.

Im literally blind! Ty