Getting 403 error on website

I have created a new website. Recently, I have started encountering a strange problem. Whenever, I try to update my post/page, I get “403 Forbidden error”. I do not know why this issue is occuring. Is there anyone who is experiencing the same or someone who can help me in this regard?

Any solution?

This error indicates that the server has determined that you are not allowed access to the thing you’ve requested, either on purpose or due to a misconfiguration . It’s probably because the site owner has limited access to it and you don’t have permission to view it. The vast majority of the time, there’s not much you can do to fix things on your (*client) end. There are four common causes for 403 Forbidden error (server side) . Here they are listed from most likely to least likely:

An empty website directory
No index page
Incorrect settings in the .htaccess file
Permission / Ownership error

If authentication credentials were provided in the request, the server considers them insufficient to grant access. The client SHOULD NOT automatically repeat the request with the same credentials. The client MAY repeat the request with new or different credentials. However, a request might be forbidden for reasons unrelated to the credentials.