'Insufficient Space Error' & 'Unauthorized Acess Error'

[General Hagen]

Hello there,
I would be REALLY greatful if somebody out there could help me.
I just downloaded the game, never started it before but suddenly two error messages appered.
The first one is:

An Insufficient Space Error occured when trying to write the disk
Please free up some space
C:/User/Username/Documents/Klei/OxygenNotIncluded/mods/mods.json

The second one is:

An Unauthorized Error occured when trying to write the disk
Please check that you have permission to write to:
C:/User/Username/Documents/Klei/OxygenNotIncluded/playerprefs.yaml
This may prevent the game from saving

First things first,
there is MORE than enough space on the disk to install the game. I searched all over but I couldn't find any clue on why this Error occures.

Second,
I have permission to write the disk. I also tried to include the file path with my anti-virus-programm, since I thought it might be responsible for this Error. But nothing worked.

Maybe someone here can give me a hint on what to do. I really wanna play this game and Klei couldn`t help me much as well ...

Have a nice day while reading this.

Regards,
General Hagen

[Cheeky Rover]

Same issue, did you ever get it to work?

['discogroovin]

same problem here, any luck?

EDIT: just the second issue fixed. You need to add the OxygenNotIncluded.exe file to the exceptions on the ransomware section of your antivirus.