I'm working on a project for my Visual Basic class, and I keep getting this error.(Value Null, Paramter Name: Source). It highlights the whole query so I can't figure out specifically where the problem is. I'll attach a screenshot of my code or something to show you. My teacher isn't able to help, probably because he doesn't know anything about Visual Basic so any help is appreciated.

Print Screen of the Code: http://prntscr.com/15320w

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