Cannot download apps at this time

Hi I have noticed that recently when I either download an app or update a certain app I get a pop up on the screen that says:

Unable to purchase

"Amazon mobile"and 5 other items

Could not be purchased at this time

Please try again later.

Now it's been saying this for a few weeks now, but the thing is, I'm not even trying to update my amazon mobile app, and I have no clue what the othe 5 are. I have tried syncing and restarting but nothing helps. My guess is that it began when I tried to probably install a bunch of updates at once at one point. There might have been a problem and they were not available. But why is it still showing me this. I should also add that amazon mobile is not in my current list of apps that have updates. Any ideas would be great, it's quite annoying.