Modify the /newsletter start page

[deepcoding]

Hi,
where can I edit the /newsletter page? It redirects to this page after subscription but the content there is an old newsletter text.
On the wordpress page there is only the shortcode [newsletter] so content must come from the plugin.
Thanks

[Stefano]

Hi, messages shown in the page are configured on admin panels, like the subscription panel, profile page panel and so on.

[Author]

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