We have got your plugin installed (medium setting) alongside gravity forms. users fill out our forms and pay a fee via paypal to get a job listing on job boards. The form has a file upload section which allows users to upload pdf files (.pdf) or word files (.doc). t=The forms are going through ok but when we try and view the pdf that have been uploaded we keep on getting a 500 internal server error. This was working fine before your plugin was installed so i just would like to know what i need to do to rectify this. This is the url of the pdf uploaded. I have the url of the pdf and will send to you in a private reply