OOS is a common error for some Civs and with big AI matches.The biggest one is Inca.. <- You should not play this is matches bigger than 1v1
2. If you delete you install and dont click uninstall, you HC´s wont get deleted
3. The HC files are Located at: " Documents/My Games/Wars of Liberty " if you want to make a safty backup
A clean install can help with many problems
I´m really sorry that you have that problems with the mod
Sadly we dont know where the OOS comes from.
Tt can have 24.000 different solutions, thats why we are collection OOS errors in our Discord, to find a pattern and hopefully fix it with a simple patch.
Lovly Greetings Maxy