Unbeatable Tic-Tac-Toe

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

Warning: DOMDocument::load(): Premature end of data in tag ip line 10793 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 10793 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('t8130', 'moves', '_OX_O_X__') #1 /usr/local/www/apache24/data/tictactoe/index.php(334): generate('_OX_O_X__', 't8130') #2 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 38