Reach option is set to the default 12, but the overlay renders way further causing the game to crash. Setting it to 1 for example does change nothing.

Minecraft 1.17.1
FabricAPI: fabric-api-0.36.1+1.17.jar
Cloth config: cloth-config-5.0.34-fabric.jar
Architectury: architectury-2.1.20-fabric.jar
LightLevelOverlay: light-overlay-6.1.0-fabric.jar

This is with reach set to 1: