Isn't displaying tally of impressions or clicks

Everything seems to be working except on the Campaign info page, it’s not showing whether the ad has had any clicks or impressions.

For two days the ad has been placed above a form, and people have been using the form, so I feel like it should have reported some impressions.

• I have PHP Version 5.2.17 while it Recommends 5.3 or higher

Any Ideas? Thanks.

Great Plug-in, by the way! I’ll probably end up buying the full version if I can get this to work.

https://wordpress.org/plugins/cm-ad-changer/