Anyone looking for a potential fix, simply remove the MCC mod (if you're running it). This removes the following 2 errors:
[BIS_fnc_activateAddons] The function can be activated only through the mission init
[BIS_fnc_moduleCurator] Curator owner not defined, player used instead in single player
See below for further details: https://github.com/shaygman/MCC_sandbox_modDev/issues/60