WordPress Popular Posts doesn’t work

Hi, I’m using the plugin “WordPress Popular Posts” to know popular posts.
But it seems WP Cerber lock out this access??

If I disable WP Cerber, it works.
So how can I accept this?? Any setting??

The traffic showing.
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http://xxx.xxx.com/wp-json/wordpress-popular-posts/v1/popular-posts/
HTTP 403 Forbidden
Form submission denied [Locked out]
====
My setting:
->Antispam
[On] Use less restrictive policies (allow AJAX)