Unable to purchase app

[GenerationX]

When I try to download an app. I get an error that tells me to download the app on the computer. The problem is discussed on this site.

http://josh.seawell.me/2011/03/30/unable-to-download-applications-on-iphone/

I really don't want to go on my computer to download apps. Anyone know how to fix this? Thanks

 

[GenerationX]

All right. The problem has seemed to fix itself...