[VE][68]Forgot to close H2 end tag?

It says that end tag for H2 is omitted and I forgot to close </H2> end tag.  I did not!  Please explain.

<center><h2><font size="+1">This includes my time in the doctor's office including surgery time. I will describe how my hair transplant restoration treatment went with before/after pictures. You'll see my eyebrow scar be virtually camouflaged by the 
revision.<br> If you're interested please click on the "Information Request" link at the bottom of this page. You'll be contacted within 24 hours by your choice of phone, email, or Skype with no cost or obilgation.</font></center></h2>

Validating http://www.twinscape.com/
Error [68]: "end tag for X omitted, but its declaration does not permit this"