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?

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

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

Invalid Characters in XML