theres a couple problems:
1) in the upload server behavior, you have bound the file field to the Validated entries collection. Instead, clci the Down Arrow next to the file field setting and select the file field from your page.
2) in the insert record behavior, you have bound the UserFiles to the Registration_group_1_UserFiles, instead, click th4e lightning bolt icon, select the WA Uploaded Files(Registration_group_1_UserFiles) binding group and select the user file name binding.
3) in your form tag the enctype attribute is misnamed nctype
change:
<form class="Basic_Default" id="Registration_Basic_Default" name="Registration_Basic_Default" nctype="multipart/form-data" method="post" action="<?php echo (htmlentities($_SERVER["PHP_SELF"], ENT_QUOTES)); ?>">
to:
<form class="Basic_Default" id="Registration_Basic_Default" name="Registration_Basic_Default" enctype="multipart/form-data" method="post" action="<?php echo (htmlentities($_SERVER["PHP_SELF"], ENT_QUOTES)); ?>">
