Remove this folder "C:\yourpcname\Unkown\Documents\My Games\Company of Heroes 2" and then start COH2 with administration rights.
As you can see in your error logs it fails to load "15:59:34.90 SYSTEMCONFIG -- Failed to load configuration from 'userdata:configuration_system.lua'."
By removing the folder I just stated before it will create a new file for this.
I'm a fan of Von but this all seems like a witchhunt to get something out of a obvious loss. Always sad to see drama overshadowing a exciting COH2 tournament, be thankfull that AE, Stormless and the whole GCS team to put in so many unpaid hours for this great tournament.
I booked for 2 nights at the Hilton Leicester hotel located at Junction, 21 Approach, Leicester LE19 1WQ if anyone wants to share a room feel free to contact me. KappaPride