Forbidden

**My website URL is:https://oldschoolsgaming.ml

What I’m seeing is: Forbidden

**I’m using this software:xenforo-2.0.12

**Additional information:*i have uploaded a new forum software which called xenforno version 2.0.12 but when i visit oldschoolsgaming.ml/install/index.php i get
Forbidden

You don’t have permission to access /install/index.php on this server.
Please help me Fix this issue thank you *

ps reuploaded files and it works