I tried reporting this 2 years ago, but it’s still an issue.
For any export function under certain dev conditions, affiliates pro will throw a notice, because it doesn’t check to see if export-nonce is set before it fires.
The patch is literally just adding
&& isset($_REQUEST['export-nonce']) to the line in question to avoid the notice. If you can please patch this, we won’t have to continually edit the plugin on our end, and anyone else running into another plugin using the name “export” will avoid this potential name collision.