The Page will not load

I created a template to process a form input. The page just hangs up and does not throw an error. If i comment out :

$autoin = $_POST[autoin];
$colnum = $_POST[cnumin]; $csvfile = fopen($csvin , “r”) or die($php_errormsg);

/

To test it the following links are for the from and my template.

https://twentyandfour.lazyls.com/csv-load/

https://twentyandfour.lazyls.com/wp-content/themes/longevity/page-templates/template-uploadcsv.php

The page I need help with: [log in to see the link]