Text does not show in html input date on a modal form

Problem: the Enter Date field of the modal form does not populate with data. I have a modal form that opens up when I click on Edit on a record line. When the form opens up the “Enter Date” date does not fill up with the pre-existing date from the main screen, instead it populates with “mm/dd/yyyy”. All other fields get populated with their respective data. How can I make that Enter Date field populate with data from the record? FYI, everything works fine, except when I click on update since the Enter Date field does not populate I get