Warning: require(./vendor/autoload.php): failed to open stream: No such file or directory in E:\usr\LocalUser\ftp0079765\wwwroot\index.php on line 4

Fatal error: require(): Failed opening required './vendor/autoload.php' (include_path='.;C:\php\pear') in E:\usr\LocalUser\ftp0079765\wwwroot\index.php on line 4