Hi Tony,
Upon checking the line item (4396464843) in you network (55799853), the line item is in paused status, therefore, the activation of the line item is not an appropriate action for this, thus the
error was generated. You can use the
ResumeLineItems action method to resume its delivery.
If the issue still persists after doing the suggestion, kindly provide your latest SOAP request and response logs with the email address you used in authentication. You may use the Reply privately to author option when replying.
Thanks,
Vincent Racaza, DFP API Team