Setup wordpress on directadmin

[cacanhmini]

This error of mine appeared in webmaster tools.
Indexing error.
It's like someone is using a bot trying to spam my website.

 

[matthew89]

I tried to install ssl but failed, when accessing it still said the website is not secure.

 

[Richard G]

I tried to install

And you have installed Letsencrypt on your server correctly?