Q: mzcommerceinappbuy message

Hello,

I have an iPad2, which I have had for a few years now.  Not jailbroken, fully updated.  No new apps installed recently.  I do have a few games on it, but I haven't played any recently. 

Sometimes when I wake the iPad up, an error message pops up in a white box and it reads as follows:

mzcommerceinappbuy.appbuyinfodataaccessfailure_message

I'm not sure what this is about.  I do have an app that I use frequently that does have the option to make an in app purchase, but I have never actually made a purchase within that app.  I am going to contact the app developers and see if they have received any reports of such a thing.  The app is Recolor. 

I am not making any in app purchases when this pops up.  It happens whether I have an app still open or not when the iPad goes to sleep. 

Anyone know anything about what such a message might mean?