I have a tracker (CPVLab) installed on a Droplet and it appears to work fine but I have a recurrent error in the logfile:

2015/07/23 14:30:57 [error] 1302#0: *10 FastCGI sent in stderr: “PHP message: PHP Notice: Undefined variable: query in /var/www/mysite.com/htdocs/traydata.php on line 0” while reading response header from upstream, client: 176.249.72.xxx, server: mysite.com, request: “GET /traydata.php?user=xxxx21&pass=d2c5fa20f0d93ec895a521d02fbf513d&action=campaigns HTTP/1.1”, upstream: “fastcgi://”, host: “mysite.com”

Ioncube loaders are installed and according to ioncube support, installed correctly.
Can someone suggest where to start looking for this error?

Thanks in advance.

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I would begin in the /var/www/mysite.com/htdocs/traydata.php file. The error indicates that this file is looking for a variable query that isn’t defined. What is happening in that file? What is requesting that file? What is it trying to do?

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