Open Steam, go to your games Library and right-click Warring States. Select Properties from the drop-down menu.

In the Local Files tab, select the Browse Local Files option.

The Warring States installation directory will open. Open up the WarringStates_Data folder.

The files you want are called output_log.txt and AILog.txt. Save them somewhere convenient for you, and share them on your forum post or email about the bug.

Open the application Console.

From the left panel, expand ~/Library/Logs and then find and select the Unity folder.
Right-click on Player.log and select Reveal in Finder.
From here, simply attach a copy of Player.log to an e-mail or the forum.