Greetings ,
DOSSystemCommand "sudo /usr/local/sbin/apf -d %s"
you gave the MOD_dosevasive a permission to BLOCK the IP which cause a DDOS attack .. and/or maybe cause DDOS attack by APF ...
if you aren't under DDOS attack , you have to remove the above line from MOD_dosevasive configuration , run "visudo" command and remove the apf line .....
you can change the DOSSystemCommand to send an E-mail to the SysAdmin telling him/hir that there is/are new ip/ips need for blocking .....
finally , if i were you , I will completely remove mod_dosevasive from my server ...!
Best of Luck ,
Ali Hamad