How to Fix a 403 Forbidden Error on Your WordPress Site

Did you just try to access your WordPress site only to be hit by some message telling you something is “Forbidden” or that you don’t have permission to access something on your site? If so, you’ve likely run into the 403 Forbidden error on WordPress. Seeing an error on your WordPress site can be frustrating and deflating, which is why we’ve created this detailed guide to help you fix the 403 Forbidden Error on WordPress and get your site functioning again as quickly as possible.
Let’s get started without any further introduction because we’re sure you just want to fix your site!
What is the 403 Forbidden Error?
Like many other common WordPress errors, the 403 Forbidden error is an HTTP status code that a web server uses to communicate with your web browser.
Quick background on HTTP status codes – whenever you connect to a website with your browser, the web server responds with something called an HTTP header. Usually, this all happens behind the scenes because everything is working normally (that’s a 200 status code, in case you were wondering).
However, if something goes wrong, the server will respond back with a different numbered
Source: https://managewp.org/articles/18265/how-to-fix-a-403-forbidden-error-on-your-wordpress-site

source https://williechiu40.wordpress.com/2019/01/07/how-to-fix-a-403-forbidden-error-on-your-wordpress-site/