Hi eandalu,
Please always put your codes in <code></code> see How do I post a question effectively?.

That been said, I think is good to check how a module is implemented before using it at all.
Check the Net::SSH documentation, it shows a different implementation to what you are trying to do. The module doesn't have an OO implementation, so no object method "New" via package "Net::SSH". But for Net::SSH2 and Net::SSH::Perl there is. However, you need check how it is used.
Please check these modules documentations.