Warning: require_once(Date/Holidays.php): failed to open stream: No such file or directory in /usr/share/doc/cpanel-php81-date-holidays-0.21.8/examples/addingTranslations.php on line 14

Fatal error: require_once(): Failed opening required 'Date/Holidays.php' (include_path='.:/opt/cpanel/ea-php73/root/usr/share/pear') in /usr/share/doc/cpanel-php81-date-holidays-0.21.8/examples/addingTranslations.php on line 14