Problema com certificado de seguração

You have set the nameservers for mestredosgames.online incorrectly @willian.

$ whois mestredosgames.online | grep 'Name Server'
Name Server: ns25.servidorprotegido.net
Name Server: ns26.servidorprotegido.net

The above shows the servers in use.

Below are the nameservers which corresponds to those in the screenshot you provided.

$ dig mestredosgames.online NS
mestredosgames.online.	3600	IN	NS	NS25.SERVIDORPROTEGIDO.NET.
mestredosgames.online.	3600	IN	NS	dns4.p06.nsone.NET.
mestredosgames.online.	3600	IN	NS	dns1.p06.nsone.NET.
mestredosgames.online.	3600	IN	NS	dns3.p06.nsone.NET.
mestredosgames.online.	3600	IN	NS	dns2.p06.nsone.NET.
mestredosgames.online.	3600	IN	NS	NS26.SERVIDORPROTEGIDO.NET.

You need to remove both the SERVIDORPROTEGIDO.NET addresses and ensure the Netlify nameservers are correctly set at the registrar.

Do note that by delegated DNS to Netlify all the records in the screenshot will stop working unless you add them before nameserver propagation is complete as explained in this documentation. Consult [Support Guide] How do I migrate a domain to Netlify DNS with zero downtime? for more on this.