code checking error

From: Randy Ajax <orders@vendingworld.com> Date: Thu, 29 Apr 2010 10:17:33 -0700 Message-ID: <4BD9BF2D.6020200@vendingworld.com> To: www-validator@w3.org · This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 22:59:17 UTC

      Validation Output: 1 Error

   1. Error /Line 1, Column 1/: end of document in prolog

      |*<*!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.o...|

http://sodavending.vendingworld.com/canenergy.php
I get this same error on all my pages that I check, the code has not 
changed and they used to be error free

NOTE: Whenever possible, give the address of the document you were 
checking.