What is this ? why is there like that?

when I use aapanel, I often see a language like this in mysql logs .... what is this?

Hamka Hello, try changing the system code to UTF-8. Is it normal?

I've used <meta charset = "UTF-8" /> ( I don't think this is the problem )

this is the information on mysql slow log that I use ..
I am just asking why does something like this appear in my mysql logs?

Hamka How does this relate to the panel? You need to ask Korean spammers.

therefore .. I ask you why spam can enter aapanel

Hamka Hello, check whether the MySQL code is UTF-8. If not, after setting it to UTF-8, see if there is any garbled code?

Hamka what are u talking about? This is a log of requests to the site database, not the panel.

I use wordpress ....