17 апр. 2018, 15:3117.04.18
Hello, Archon!
Please check your resource production boosts. One of them could turn off and the production decreased.
Also, here is how to take the screenshots:
http://www.wikihow.com/Take-a-Screenshot-in-Mac-OS-X
http://www.wikihow.com/Take-a-Screenshot-in-Microsoft-Windows
Please attach a screenshot of your current grain production tab and specify the value you had there before. Please describe the actions you have performed before the issue.