1) you password field has a space in the name:
<input type="text" name="Change Password" id="Change Password" />
it should be:
<input type="text" name="ChangePassword" id="ChangePassword" />
2) In the update record behavior, you have bound the password column to the FILES collection:
$WA_fieldValuesStr = "".((isset($_FILES["Change"]))?$_FILES["Change"][""]:"") ."";
instead of the POST Collection:
$WA_fieldValuesStr = "".((isset($_POST["ChangePassword"]))?$_POST["ChangePassword"]:"") ."";