I'm using the dompdf plugin for codeigniter: http://codeigniter.com/wiki/PDF_generation_using_dompdf/

to generate pdfs from a form. This works on localhost, but on the live server I get this in the error log:

Directory index forbidden by Options directive: /var/www/vhosts/domain.co.uk/httpdocs/mm/userdata/account1/invoices/

Any idea what this means? I've searched for answers, and found a few that suggest editing the httpd.conf, however I don't have access to this.

I've also tried adding a blank index.html file to the root and document directory (as also suggested elsewhere, but to no avail).

Any help greatly appreciated.

Thanks!