Can't copy the songs to iphone

Can't copy the songs to iphone. Help?!

Added (1). All of the songs on my iphone were deleted. Then i tried to download them again, with the help of copying the songs to itunes, but it can't be copied. How to fix it?

http://labassistan.blogspot.com/2014/09/cant-copy-songs-to-iphone-help.html

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