Thread:Project:Support desk/403 Forbidden error on saving page

I'm very much a novice Admin of the Wiki on our website and used your search to try and find a solution to this issue, but none seems appropriate, or I wasn't able to follow the explanation.

It is very much a standard install, but on a shared server, so I'm unable to make any changes to the OS without asking our Hosting company.

URL: http://www.hrca.net/wiki

On clicking 'save' I get this error, then I'm locked out for a period of 30+ mins

403 Forbidden You don't have permission to access /mediawiki/index.php on this server. Apache Server at www.hrca.net Port 80

Installed software

Product	Version MediaWiki	1.20.3 PHP	5.3.27 (apache2handler) MySQL	5.5.39-cll-lve

Entry point URLs Entry point	URL Article path	/wiki/$1 Script path	/mediawiki index.php	/mediawiki/index.php api.php	/mediawiki/api.php load.php	/mediawiki/load.php

Many thanks for looking Robin