I'm not sure whats wrong has it doesn't tell me.
I met the similiar situation yesterday, I thought that's result from the iTunes connect update August 8 2016, red exclamation by all localized language without others information. If you meet this situation from August 8 2016, maybe it's the case.
I contacted Apple support and finally submitted new version since I filled up screen-shots for all sizes.
while you can upload the maximum size screenshot and 're-use' it for smaller size at 'Media Manager' page.
Solution: I had the same problem. With the new update, there is a Media Manager beneath the screen shots. Even though it is giving you a Language error, the problem is with the screen shots. Simply open the media manager and make sure that every size either has its own image or you can click the checkbox to use the two required sizes. That fixed my Language error issue.
When you choose screenshots, don't use 5.5 inch one for 3.5 screens. Make sure this is unchecked.
It will work after you uncheck it.
Try the following:
Click on Pricing
tab and choose Price Tier
as Free
or <your_price>
Otherwise check Rating
if it is set properly.
Eventually check if you selected some extra languages to localize (even if I don't think so looking at your images)
来源:https://stackoverflow.com/questions/38878676/itunes-connect-cant-submit-due-to-language-error