In the spirit of keeping it simple, I'd suggest replacing

Perl
Perl will tell you more if you have "use strict; use warnings; use diagnostics;" in your code.

Why strict and warnings?
Always use strict and warnings in your code. It helps you find possible errors. Don't remove strict and warnings to make warnings and errors go away. "use diagnostics" helps to understand the errors. If you still don't understand the messages, ask someone.

with

Perl
Perl will tell you more if you have "use strict; use warnings; use diagnostics;" in your code. (See strict, warnings and diagnostics pragmas.)

Feel free to use the explanatory node of your choice...