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A 403 error is an error found on webpages which means that the webpage
you tried to go to is forbidden and that you are not supposed to access it.
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HTTP 403 is a HTTP status code meaning access to the requested resource is forbidden for some reason.
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403 Forbidden
The HTTP 403 Forbidden response status code indicates that the server understands
the request but refuses to authorize it.
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The HTTP 403 Forbidden client error status response code indicates that
the server understood the request but refuses to authorize it.
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403 errors are often related to file permission settings. Try checking the
file permissions using SSH / FileZilla / cPanel This might help you find
the right direction to take for solving your issue. If you are unsure
about how to change file permissions then give it a quick Google or have a
chat with your hosting company; they should be able to help you out. (^_^)