bitkonnekt I have the exact same issue trying to setup a server. I followed the instructions from https://plutonium.pw/docs/server/t6/setting-up-a-server/ . I tried starting it with the files in gameserver/T6 and also from another drive. Both times I selected the path to the game itself (/T6). Still getting the very same error you posted a screenshot of.
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sativa5050
@sativa5050