Unbeatable Tic-Tac-Toe

New Game
Make Your Move
O Select Select
X O X
Select Select Select

Warning: DOMDocument::load(): Premature end of data in tag moves line 18364 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 18364 in /usr/local/www/apache24/data/tictactoe/index.php on line 36

Fatal error: Uncaught Error: Call to a member function getElementsByTagName() on null in /usr/local/www/apache24/data/tictactoe/index.php:38 Stack trace: #0 /usr/local/www/apache24/data/tictactoe/index.php(113): update_element('t4065', 'moves', 'O__XOX___') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('O__XOX___', 't4065') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38