I've recently updated CreativeCore to v2.11.15 & LittleTiles to Alpha Pre075 but this crash still happened, here's the crash log
crash-2023-12-16_07.43.56-client.txt

Oh wait, I think I've posted in a wrong place. Please close this and move to this new issue link:
CreativeMD/CreativeCore#199

It was an issue of LittleTiles. Should be fixed in the newest version released yesterday. Make sure to update CreativeCore as well.