A couple of Errors

I have been getting a few errors after updating DFP.

  Warning: Invalid argument supplied for foreach() in .../WA_DigitalFilePro/HelperPHP.php on line 316  

  Warning: Cannot modify header information - headers already sent by (output started at ...WA_DigitalFilePro/HelperPHP.php:316) in .../k9_SaD_Insert.php on line 160  

There are no blank spaces following any closing php tags and the form is set to multipart.

Any ideas?

It's not just blank spaces. Have a look here:
148/

Thanks for the link to the knowledge base.

I have checked again for blank spaces or lines and there aren't any.

I have no idea what this means

  The solution is to eliminate anything that would generate any output that occurs before the call to header().  

It appears to be the insert behaviour that calls the headers and there are three DFP behaviours before it.

It means that the header() command must come before any html code that would generate any thing that's sent to the browser. The spaces are the most common because they are easily missed. If you make sure the header() command is on the first line, you should be able to avoid this error.

I've updated the article with some more information. Let me know if it is still not clear and I will try to make it clearer.

I moved the insert behaviour above all of the others and this solved the error.

But now I have another problem - but I will make a new Topic

Thanks for your help!!

You're welcome. Glad it worked for you.