Postback issue with Advertizer

[ametrics00]

Running push cpc camps on Advertizer. Using the same postback as I have since I started 6 months ago. http://postback.advertizer.com/pb.php?clickid={externalid}&amount={payout}&advertiser_id= **removed my info**

Received this message:

When I asked for clarification:

I'm a bit lost on what I need to adjust. Thanks in advance