AWS Lightsail My Wordpress, Suspected unknown attack

Job ID: 31174465

Budget: $10 – $30 USD

Hi.
From yesterday, logs suspected of being attacked are confirmed in my WordPress.
The connection is currently unavailable.
I have set up Cloudflare and AWS Firewall, but it doesn't seem to be blocked.
IP addresses of various countries such as the United States, Singapore, Finland, and Israel are confirmed.

The only IP allowed is South Korea.
Therefore, other countries should not allow access.
Check out My Cloudflare and take action.

Please figure out the problem and explain it to me.
And it will be the final award.