Need Some Quick Help With AN XML Parsing Error: not well-formed

So This is the error I am getting:

XML Parsing Error: not well-formed
Location: http://viralboss.us.to/km/
Line Number 4, Column 107:            <url>http://S开发者_如何学GoOMEURL/ADE/FOKEO?sr=800&int=307200b&nvb=20110508013818&nva=20110508021818&hash=0732f9446b4f8a76dde35</url>
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I have no idea why I am getting this error theres nothing wrong with my url can someone help me out?

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You can't place arbitrary text into an XML Element. The problem is that you need to escape your & sign. Use & instead.

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The & is an invalid character in XML. See this other question for how to escape the & sign.

Invalid Characters in XML