You have to change the permission settings of the folder which contains the page that you were suppose to see instead of the error message. From your control panel, go to file manage, then double click on the folder that has your HTML and PHP files (usually they should be in the folders “HTML”. “Public HTML” and “WEB”). Then look for the folder your were denied from accesing, highlight the folder and click the option “change permissions”. Enable the “write” permission for user only. Also enable the “execute permissions” for all user types. If the "Change Permissions" " dialog box prompts for number values , enter "755" in the permissions box. Then Save.