Just installed the module and it looks like it will work for a site that I am building, thanks for your work.

I have it installed and it is working (I think) but I get no link in the menu for "Ubercart referral usage data" under Reports.
It creates the referral and I can see that in the user's page, so this part works.

I looked in the module found the code that creates the link (line 95)

$items["admin/reports/uc_referrals/referral"]

When I enter the link in my browser, it brings up a page with no data and this error message:

warning: Missing argument 1 for uc_referrals_report_for_referral() in /Applications/MAMP/htdocs/gobi/sites/all/modules/uc_referrals/uc_referrals.admin.inc on line 539.