If you are owner of the webspace you can change that otherwise you have to ask the admin for user and password or to free the requested folder.
If you ar owner look for a .htaccess and .htpasswd it's most used technik to protect.
Change the content of .htaccess to free the requested folder and set that folder-attribute to 755 and files-attribute to 644.
To set the link in the AllVideo-Link to
is a risk, anyone is be able to read that login, and the hackers door is be open!!!