Bug system?

Dear Sir/Madam,

I'm busy trying to solve the mission monkey typing. Only when I want to “run and check” my code, I get an empty return screen of error's. I've attached my code in a notepad document. Could you please look in to this and tell me if I made a mistake, and if I did what I did wrong? thanks in advance Greets Ruben

From: http://www.checkio.org/mission/monkey-typing/solve/

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