How do I upgrade to premium? Getting an error when I follow instructions.

[pmcarro]

I'm trying to upgrade to premium for personal taxes so I can enter K-1 information.  Whenever I follow the instructions to upgrade, I get "Hmmm, looks like we hit a slight snag in this section" - why can't I proceed?

[PatriciaV]

It's possible this is browser-related. Please log out of TurboTax, refresh your browser, and clear your cookies and cache. Then restart your browser, log into TurboTax, and try upgrading again.

For more help, please see:

• How do I delete cookies?
• How to clear your cache 
• How do I upgrade or switch to a higher version of TurboTax Online?