Error message

• Warning: include_once(D:\websites\library\misc\typo3\phar-stream-wrapper\s): failed to open stream: No such file or directory in include_once() (line 27 of D:\websites\library\includes\file.phar.inc).
• Warning: include_once(): Failed opening 'D:\websites\library/misc/typo3/phar-stream-wrapper/src/Phar/Reader.php' for inclusion (include_path='.;C:\php\pear') in include_once() (line 27 of D:\websites\library\includes\file.phar.inc).