[VE][338] Error Message Feedback

Hi,
When i checked my page http://validator.w3.org/check?uri=http://mmacomics.com/rooms/michaelf/diary.htm, it gave me this error:

--------------------------------------------------------------------------------

Line 31, column 144: cannot generate system identifier for general entity "entry"

....ref='/rooms/michaelf/diary.htm?diary&entry=34#go34' name='go34'>Wednesday 11t


--------------------------------------------------------------------------------

Even though the address /rooms/michaelf/diary.htm?diary&entry=34#go34 is valid.
Why is it happening? Is it something I need to change?

thanks
Michael Fallows
Htmlland.net