valid html5 error

5 error 1 warning gmana cara ngatasi ini ebelum aku terapkan template aku blogku yang lain

Validation Output: 5 Errors

1. Line 26, Column 122: & did not start a character reference. (& probably should have been escaped as &.)

   …n.css?targetBlogID=3543649794901711808&zx=0b461e91-388a-469d-a950-646c7d0fb712…

   ✉
2. Line 786, Column 82: & did not start a character reference. (& probably should have been escaped as &.)

   …m/rearrange?blogID=3543649794901711808&widgetType=Attribution&widgetId=Attribu…

   ✉
3. Line 786, Column 105: & did not start a character reference. (& probably should have been escaped as &.)

   …649794901711808&widgetType=Attribution&widgetId=Attribution1&action=editWidget…

   ✉
4. Line 786, Column 127: & did not start a character reference. (& probably should have been escaped as &.)

   …Type=Attribution&widgetId=Attribution1&action=editWidget&sectionId=sidebar' on…

   ✉
5. Line 786, Column 145: & did not start a character reference. (& probably should have been escaped as &.)

   …idgetId=Attribution1&action=editWidget&sectionId=sidebar' onclick='return _Wid…

   jujur aku dah coba beberapa template namun ini adalah hasil maksimal dan di blog inilah eksperimen itu berlangsung maklum gak faham dunia html css ato rss