라이믹스 Warning 관련 문의 드립니다.

안녕하세요. 오랜만에 문의 드립니다.

어제 처음 이 문서( https://github.com/rhymix/rhymix-docs/blob/master/ko/misc/crontab.md )를 보고 서버에 설정했습니다.

오늘 로그를 보니 PHP Warning이 보이는데요.

이건 무시해도 되는건가요? 아니면 php disable_functions에서 passthru를 삭제해야 되는건지 궁금합니다. 

Successfully deleted all garbage files older than 10 days.
Successfully deleted aborted file chunks older than 10 days.
Successfully deleted all notifications older than 30 days.
PHP Warning: passthru() has been disabled for security reasons in /라이믹스 설치경로/common/scripts/clean_empty_dirs.php on line 19
#0 (): Rhymix\Framework\Debug::addError()
#1 /라이믹스 설치경로/common/scripts/clean_empty_dirs.php(19): passthru()
Successfully deleted all empty directories under files/attach.
PHP Warning: passthru() has been disabled for security reasons in /라이믹스 설치경로/common/scripts/clean_empty_dirs.php on line 31
#0 (): Rhymix\Framework\Debug::addError()
#1 /라이믹스 설치경로/common/scripts/clean_empty_dirs.php(31): passthru()
Successfully deleted all empty directories under files/member_extra_info.
PHP Warning: passthru() has been disabled for security reasons in /라이믹스 설치경로/common/scripts/clean_empty_dirs.php on line 43
#0 (): Rhymix\Framework\Debug::addError()
#1 /라이믹스 설치경로/common/scripts/clean_empty_dirs.php(43): passthru()
Successfully deleted all empty directories under files/thumbnails.