Warning: require(D:\apps\phpBB\ve): failed to open stream: No such file or directory in D:\apps\phpBB\vendor\composer\autoload_real.php on line 43

Warning: require(D:\apps/symfony/polyfill-mbstring/bootstrap.php): failed to open stream: No such file or directory in D:\apps\phpBB\vendor\composer\autoload_real.php on line 57

Warning: require(D:\apps/symfony/polyfill-mbstring/bootstrap.php): failed to open stream: No such file or directory in D:\apps\phpBB\vendor\composer\autoload_real.php on line 57

Fatal error: require(): Failed opening required 'D:\apps/symfony/polyfill-mbstring/bootstrap.php' (include_path='.;C:\php\pear') in D:\apps\phpBB\vendor\composer\autoload_real.php on line 57