N.B.: Making this as a community wiki. I feel there should be no personal gain from this answer.
As outlined in comments:
method). – D4V1D
<input type="text" name="E-LN6709" value="1" /needs a
>on the end – Adam
But this one I caught after:
Your conditional statement will fail because of the space in there.
- Remove it
Add error reporting to the top of your file(s) which will help find errors.
<?php error_reporting(E_ALL); ini_set('display_errors', 1); // rest of your code
Sidenote: Displaying errors should only be done in staging, and never production.