By removing the use strict; directive, you're not fixing the errors it gave you, rather you're just ignoring them. If possible, I suggest you fix the potential problems that strict points out, before they become serious problems.

As for the error concerning Class::Accessor::Fast, it sounds like that class either isnt installed either, or is messed up on the server. In that case, you'll want to also give that module the same copy-n-paste-into-your-script treatment.