Calculated absolute path to tslib directory does not exist. Something in the main file, folder and link structure is wrong and must be fixed! A typical document root contains a couple of symbolic links: * A symlink "typo3_src" pointing to the TYPO3 CMS core. * A symlink "typo3" - the backend entry point - pointing to "typo3_src/typo3" * A symlink "index.php" - the frontend entry point - points to "typo3_src/index.php"