pluhnews styling leads to error message

[JacobiKenobi]

Hi,

I am using the PluhNews script (correctly modified to work with vb3). I tested it out and it worked fine, so I moved on to customize the html and css styles how I wanted it to look.

I will be including the pluhnews.php files in an iframe on my index.php in my root website directory (a nonvb page). i am even making sure to change the filepaths to anything that the pluhnews will require/include.

I listed the css styles in the pluhnews file and apparently it is conflictign with the required global.php file (or something else) in pluhnews.php and now when i load the pluhnews.php file on its own (mydomain.php/forum/pluhnews.php) i get this error message

Unable to add cookies, header already sent.
File: N/A
Line: 0

How can I get around/fix this?

I have attached the pluhnews file that is displaying that error message below.