It is asking for a zip code on schedule E. I put it in but it sys it's invalid. what do i do.

It's unclear. My advice would be two fold.

1. Clear the filed with the delete key and then clear all the possible debris (TurboTax Online only).
2. Next, re-enter the zip code and be sure you are using numbers only. Do not enter any additional 4 digits or dashes.

In this situation, first please try clearing the cookies and cache.   It handles many issues that seem nonsensical on a regular basis with online activity. 

• Close your TurboTax return first.

Watch to be sure you are selecting 'all time' as example.  Do not use selections like 'last hour' for those browsers that give  you options.

• How to clear your cache

Once this is complete open your return and try again.

If you are using TurboTax Desktop, save your return, then at the top select Online, then Check for updates.