@Naphtali - There is no real way to answer that without your testing it for yourself. It sounds like your game save is corrupted and the culprit that caused this corruption is either the mod you have already identified or the mod together with something else you have in play (another mod) that it is conflicting with. If you can revert to a copy of a prior save without the world being red and without the mod in place, and putting the mod back in causes the problem to reappear, then you have proven it.
The game is a huge database with lots of moving parts. A corrupted game save has data in the wrong places, thus causing all kinds of unwanted and unexpected problems. Once such corruption has been detected by the player, there is really no way to fix it. NRaas mods can help prevent corruption, but often enough once ErrorTrap starts barking at you about another mod causing these kinds of problems, they have probably already happened and gameplay has to revert to a prior save anyway.