CWP updates showing error

when i run update cwp command it showing me this error, anybody please help to resolve this error

 # sh /scripts/update_cwp


====================================================
============= CentOS Web Panel Cron ================
====================================================


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Firewall Flu-bash: [18:01]: command not found
sh Daily Blocks
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Update Server Packages
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Redirecting to /bin/systemctl restart cwpsrv.service

** (pkttyagent:22189): WARNING **: 18:01:48.145: Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject
Error registering authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0)
Redirecting to /bin/systemctl restart httpd.service

** (pkttyagent:22282): WARNING **: 18:01:48.438: Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject
Error registering authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0)
Redirecting to /bin/systemctl reload httpd.service

** (pkttyagent:22409): WARNING **: 18:01:49.293: Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject
You have new mail in /var/spool/mail/root

You can ignore polkit error. Try to goole by the forum about the error and you will find a few solutions.