The same issue persists with default WordPress theme. Activate Twenty Fifteen theme and check. This is caused by WPML plugins. When they are disabled blog page works fine. You need check it with WPML support. Also pay attention to the error present in Settings > Reading:
“Your home page does not exist or its translation is not published in Chinese (Simplified), Russian, Spanish, Portuguese (Brazil).”
This may be the reason.
Anyway you have to contact WPML support, mention that the problem persists with Twenty Fifteen theme too.