devi farlo dal pannello di amministrazione del tuo sito

il pannello lo trovi all'indirizzo
tuosito.est/admin

you have to do it from the administration panel of your site

you can find the panel at
tuosito.est/admin

According to the instructions, comments can only be deleted or allowed / not allowed.

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How to manage comments through the online Control Panel

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You can use the following commands for each post:

• Delete: to remove the comment by deleting it not only from the Blog page, but also from the list of comments on the Control Panel.
• Approve/Reject: if you approve the comment it will be displayed on the Blog; on the other hand, if you reject it, it won't be displayed among the other Blog comments, but it will still be available on the list on the Control Panel.

>> https://guide.websitex5.com/en/support/solutions/articles/44000540447-so-verwalten-sie-die-kommentare-durch-das-online-control-panel

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Maybe the moderators have some tricks up their sleeves.