W3C validation problem

[wilson_li]

Hello All,

I had a problem with W3C validation after I installed "Short Description for Categories" and put the text into the sub-category description section.

<m:brkBinSub m:val="--"/>
<m:smallFrac m:val="off"/>
<m:dispDef/>
<m:lMargin m:val="0"/>
<m:rMargin m:val="0"/>
<m:defJc m:val="centerGroup"/>
<m:wrapIndent m:val="1440"/>
<m:intLim m:val="subSup"/>
<m:naryLim m:val="undOvr"/>
</m:mathPr></w:WordDocument>
</xml><![endif]--><!--[if gte mso 9]><xml>

W3C validator detected above HTML code (line 153 -line 163)w ere not valid. So What file I should locate in order to eliminate these errors

website: http://www.oleklejbzon.com/campbellsloft3/