$Win32::VERSION--version check failed at line 435 finds lots of hits. Most of them indicate that there is a missing use Win32; line:

• http://sourceforge.net/p/open-perl-ide/discussion/73753/thread/9d35f4f4/
• http://bytes.com/topic/perl/answers/891119-perl-script-compiling

Barring further information from you, I guess that the main problem is that you upgraded your version of Perl but whatever IDE you might be running still uses an old/incompatible version of perl5db.pl to run your Perl programs. Maybe adding use Win32; to perl5db.pl might fix that.