Unbeatable Tic-Tac-Toe

Warning: DOMDocument::load(): StartTag: invalid element name in /usr/local/www/apache24/data/tictactoe/games.xml, line: 6265 in /usr/local/www/apache24/data/tictactoe/index.php on line 45

Warning: DOMDocument::load(): Premature end of data in tag game line 6263 in /usr/local/www/apache24/data/tictactoe/games.xml, line: 6265 in /usr/local/www/apache24/data/tictactoe/index.php on line 45

Fatal error: Uncaught Error: Call to a member function getElementsByTagName() on null in /usr/local/www/apache24/data/tictactoe/index.php:47 Stack trace: #0 /usr/local/www/apache24/data/tictactoe/index.php(311): fetch_element('t1888', 'moves') #1 {main} thrown in /usr/local/www/apache24/data/tictactoe/index.php on line 47