After Upgrade To Mv 4.10.1, We Got "xml Parse Error" .. What Does It Mean?

Hi all,

After Upgrade to MV 4.10.1, we got "XML parse error" .. what does it mean? Is it related to the new products options variation system ?

XML parse error
Error 42: Attribute width redefined
Line: 67
Column: 228


possible incompatible addon for new version