Google Search Console Detected Hacked Content

Hello.
I just received this email from google:

Google has detected that your site has been hacked by a third party who created malicious, unexpected or harmful content on some of your pages. This issue affects your site’s reputation by showing the hacked content on your site or in search results. We recommend you remove the hacked content from your site as soon as possible. Once removed, our system will automatically reflect these changes as we update our index.

Following are some example URLs. Review them to gain a better sense of where this hacked content appears, and how it may have been placed on your website. The list is not exhaustive.

https://bandamusicalleverense.pt/?wordfence_logHuman=1&hid=824020E5810C8EB0CA419D539DA6DB1F

Also, I noticed that yesterday someone try to add my website as theirs on google webmaster tools.

Do you know what’s this about?

The page I need help with: [log in to see the link]