firewall alerts from system

Hi, I’ve been trying to stop thousands of alerts showing all from “system” with the rule set to block don’t log. Have posted on this before with no cure, I have set alerts to very low and set udp to don’t show but they keep coming. I really hope someone can take the time to help, I’ve tried all I can. Thanks, N

Check this:

                                                                                                                                       Thanks, Jose