Error 403

Hello,
I tried things and things and things… but no issue, for now I hope 🙂
I have this message when I try to connect “You don’t have permission to access /wp-content/plugins/wordpress-social-login/hybridauth/ on this server.”.
This plugin worked perfecttly well since 2 or 3 years. But now impossible.
So I erase the htaccess, and called my host but then can’t find anything…

Do you have any idea?
Thank you a lot !