Help for my application

Help for my application. I'm trying to guess, but I'm blocked at some point.

I'm posting an applet. I can not run. The person who can help is connected to the computer.

Hi Tahsin,

you need to ask a question otherwise we cannot help you. What is the problem? 

I'm asking. Estimation does not work What could be the reason?

I try to guess the exchange rate in the files I send. But I'm stuck in the end.