[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include([ROOT]/vendor/twig/twig/lib/Twig/Lexer.php): failed to open stream: No such file or directory
[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include([ROOT]/vendor/twig/twig/lib/Twig/Lexer.php): failed to open stream: No such file or directory
[phpBB Debug] PHP Warning: in file [ROOT]/vendor/composer/ClassLoader.php on line 412: include(): Failed opening '[ROOT]/vendor/twig/twig/lib/Twig/Lexer.php' for inclusion (include_path='.:/usr/local/php5.6/lib/php')

Fatal error: Class 'Twig_Lexer' not found in /home/ddstv/www/forum/phpbb/template/twig/lexer.php on line 17