somebody knows because he appears to me this

Warning: Unknown(): to open_basedir restriction in effect. File(/home/atres/public_html/index.php) is not within the allowed path(s): (/home/ghost:/usr/lib/php:/usr/local/lib/php:/tmp) in Unknown on line 0 Warning: Unknown(/home/atres/public_html/index.php): failed to open stream: Operation not permitted in Unknown on line 0 Warning: (null)(): Failed opening '/home/atres/public_html/index.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in Unknown on line 0

...and as it is possible to be solved?
In use Cpanel 8.5.4 R72 (RedHat9)