False positive or virus?

Is this a false positive or a virus?

This is the second time this has happened on the same website.

The first time, the AI ​​analyzed the cache file (WP Fastest Cache – WordPress Cache Plugin) and found nothing suspicious.

This doesn’t happen on other websites.

Wordfence doesn’t find anything significant beyond this. It just spams the page every time.

Maldet+ClamAV also does not find viruses.