"Sorry, you have been blocked" When someone adds code to my wordpress website - How do I activate this security on my website?**

Website, Application, Performance Security Center
1

“Sorry, you have been blocked”

When someone adds code to my wordpress website .* How do I activate this security on my website?**
Plz Help me

CF
CF1678×1326 107 KB

3

Enable the WAF.

4

already enable WAF(Free user), but not work.