Unable to execute an order in a demo account

 
I am new to forex trading and I have been trying to familiarize myself with the features of the MT4 platform. However, from the start till now I have  been unable to execute a trade. When I click on the new order tab, the following attachment is what I always encounter. It would be great if i could get some advice on this matter as i would love to know the issue underlying this matter.
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MetaTrader 4 Help
MetaTrader 4 Help
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Client Terminal is a part of the online trading system. It is installed on the trader's computer and intended for: receiving quotes and news in...