Wordpress 403 ertror

Im getting a 403 error connecting to my wordpress instance.

Ive read all the previous posts on this topic which gets the response:
“Without more information on your external server and how Wordpress is installed on it, it is unlikely we can provide accurate advice on how to solve this issue.”*

I’ve got a vanilla wordpress isntall on a shared host (VentraIP). No plugins installed.

From the sever side what should I be looking at?
How can I get more information to diagnose the problem?