Recieved message /usr/bin/which: no chflags in (/usr/bin:/bin) when cron finished update

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For cPanel
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Please SSH to your server and run following command.

touch /usr/bin/chflags; chmod 755 /usr/bin/chflags;
rm -f /var/cpanel/rvglobalsoft/rvsitebuilder/rvsitebuilderversion.txt
perl /usr/local/cpanel/whostmgr/docroot/cgi/rvsitebuilderinstaller/autoinstaller.cgi
rm -f /usr/bin/chflags

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For DirectAdmin
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Please SSH to your server and run following command.

touch /usr/bin/chflags; chmod 755 /usr/bin/chflags;
rm -f /usr/local/rvglobalsoft/rvsitebuilder/rvsitebuilderversion.txt
perl /usr/local/rvglobalsoft/rvsitebuilderinstaller/autoinstaller.cgi
rm -f /usr/bin/chflags