Hii, no lighting mods work for the sims castaway stories and I was wondering if anyone has a solution to this.
The lighting mods work in the lots but for the neighbourhoods terrain and stuff it still shows as daytime, please help <3

Well, Gunmod's lighting mod isn't really made for the Stories games, and could cause some unintended bugs. There are differences between how TS2 and Castaway handle light. Castaway is also based more on the Seasons/BV (?) game engine, so considering Gunmod's lighting system is meant for TS2 all the way to AL/M&G (depending on version - it may work with lower EPs too), that could also be a problem.

You did make sure to take backups of the original files, right? You may have to replace them to get the game back to default settings.

most likely someone would have to make a lighting mod spesifically to work with Castaway.