Feed problem

Actually, in FF is not blank, it says this:

XML Parsing Error: not well-formed
Location: https://sillyhat.zoomcities.ws/wordpress/feed/
Line Number 93, Column 74:		<guid isPermaLink="false">https://www.wretch.cc/blog/weiqiang&article_id=7545427</guid>

I get the same error: XML Parsing Error: not well-formed code.

How do I go about making changes to reform the code?

storiesof.us

thanks.

I get this error when I try to access my feed. This started happening around the time I upgraded to WP 2.5… any relation or did I mess up elsewhere?

XML Parsing Error: not well-formed
Location: https://www.angrybrownguy.com/?feed=rss2
Line Number 3024, Column 8:<p><!--[if gte vml 1]><v :shapetype id="_x0000_t75" coordsize="21600,21600" spt="75" preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> </v><v :stroke joinstyle="miter"> </v><v :formulas> </v><v :f eqn="if lineDrawn pixelLineWidth 0"> </v><v :f eqn="sum @0 1 0"> </v><v :f eqn="sum 0 0 @1"> </v><v :f eqn="prod @2 1 2"> </v><v :f eqn="prod @3 21600 pixelWidth"> </v><v :f eqn="prod @3 21600 pixelHeight"> </v><v :f eqn="sum @0 0 1"> </v><v :f eqn="prod @6 1 2"> </v><v :f eqn="prod @7 21600 pixelWidth"> </v><v :f eqn="sum @8 21600 0"> </v><v :f eqn="prod @7 21600 pixelHeight"> </v><v :f eqn="sum @10 21600 0"> </v> <v :path extrusionok="f" gradientshapeok="t" connecttype="rect"> <o :lock ext="edit" aspectratio="t"> </o></v><v :shape id="_x0000_s1026" type="#_x0000_t75" alt="Make a matching donation" href="https://my.barackobama.com/page/m/ffdc0e7a2bc6766c/yTnQ3p/VEsH/" mce_href="https://my.barackobama.com/page/m/ffdc0e7a2bc6766c/yTnQ3p/VEsH/" style="'position:absolute;margin-left:147.5pt;margin-top:0;width:187.5pt;" mce_style="'position:absolute;margin-left:147.5pt;margin-top:0;width:187.5pt;" allowoverlap="f" button="t"> </v><v :imagedata src="https://my.barackobama.com/page/contribute_c/onemillion_email2/graphic" mce_src="https://my.barackobama.com/page/contribute_c/onemillion_email2/graphic"> <w :wrap type="square"> </w></v>< ![endif]--><!--[if !vml]--><a href="https://my.barackobama.com/page/m/ffdc0e7a2bc6766c/yTnQ3p/VEsH/"><img src="https://my.barackobama.com/page/contribute_c/onemillion_email2/graphic" border="0" alt="Make a matching donation" hspace="4" width="250" height="420" align="right" /></a><!--[endif]--><span>We learned   something extraordinary since I wrote to you last night.</span></p>
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Just an update… I followed the error on each line number and got rid of the extra code it stated each time. Works just fine for me now.