Place:

use strict;
use warnings;
[download]

at the start of your script. Clean up the errors. Come back when you have done that and if you still have problems.

If you come back, show us 10 lines of code (that run as a complete script) that demonstrate the problem. Show us what you expect and what you get (use print for output to STDOUT).

If you still have a problem after that process I owe you a chocolate bar, otherwise you owe me one. :)