Unable to save shipping information. Please check input data

[alok kumar _bharti]

Pre Condition

Magento 2.2.2

php:7.0.27

mysqlnd 5.0.12-dev – 20150407

Steps to reproduce

1. Add product to cart
2. Go to checkout
3. Check "My billing and shipping address are the same"
4. Try to place order

Expected result

1. Get redirected to bank

Actual result

1. Loader does endless loading, a message appears and disappearis quickly :
   "Unable to save address. Please, check input data."

[Damian Culotta]

Hi @alok kumar _bharti,

Can you check your Magento logs, the webserver error log and also, in this case, the ajax call using the browser console?

It will be nice to have an error message to have some clue about the kind of error.