I’m confused with this screen
So I am trying to erase my iPhone via Find My. I am trying to reset my password, and every time I try to do it, it says “Enter iPhone Passcode”. The thing is, it is NOT a keypad. It is just a bar where you can type anything. So I presume that it just wants my six digit iPhone passcode. I enter it and it doesn’t work. Am I missing something here? I am so confused.