crash report (i think it has to do with falling gravel) i know it has to do with this mod because the game runs fine without it, game version : 1.20.1

---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 2025-01-27 18:24:02
Description: Rendering entity in world

java.lang.NullPointerException: Cannot invoke "net.fabricmc.fabric.api.renderer.v1.Renderer.meshBuilder()" because the return value of "net.fabricmc.fabric.api.renderer.v1.RendererAccess.getRenderer()" is null
at knot//me.pepperbell.continuity.impl.client.ProcessingContextImpl.(ProcessingContextImpl.java:20)
at knot//me.pepperbell.continuity.client.model.CtmBakedModel$CtmQuadTransform.(CtmBakedModel.java:104)
at knot//me.pepperbell.continuity.client.model.ModelObjectsContainer.(ModelObjectsContainer.java:10)
at java.base/java.lang.ThreadLocal$SuppliedThreadLocal.initialValue(ThreadLocal.java:305)
at java.base/java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:195)
at java.base/java.lang.ThreadLocal.get(ThreadLocal.java:172)
at knot//me.pepperbell.continuity.client.model.ModelObjectsContainer.get(ModelObjectsContainer.java:18)
at knot//me.pepperbell.continuity.impl.client.ContinuityFeatureStatesImpl.get(ContinuityFeatureStatesImpl.java:16)
at knot//me.pepperbell.continuity.api.client.ContinuityFeatureStates.get(ContinuityFeatureStates.java:10)
at knot//net.minecraft.class_901.handler$zlo000$continuity$beforeRenderModel(class_901.java:515)
at knot//net.minecraft.class_901.method_3965(class_901.java:45)
at knot//net.minecraft.class_901.method_3936(class_901.java:17)
at knot//net.minecraft.class_898.method_3954(class_898.java:145)
at knot//net.minecraft.class_761.method_22977(class_761.java:1574)
at knot//net.minecraft.class_761.invokeRenderEntity(class_761.java)
at knot//net.irisshaders.iris.shadows.ShadowRenderer.renderEntities(ShadowRenderer.java:635)
at knot//net.irisshaders.iris.shadows.ShadowRenderer.renderShadows(ShadowRenderer.java:504)
at knot//net.irisshaders.iris.pipeline.IrisRenderingPipeline.renderShadows(IrisRenderingPipeline.java:1022)
at knot//net.minecraft.class_761.handler$bmc000$iris$renderTerrainShadows(class_761.java:7552)
at knot//net.minecraft.class_761.method_22710(class_761.java:1241)
at knot//net.minecraft.class_757.method_3188(class_757.java:1110)
at knot//net.minecraft.class_757.method_3192(class_757.java:880)
at knot//net.minecraft.class_310.method_1523(class_310.java:1219)
at knot//net.minecraft.class_310.method_1514(class_310.java:802)
at knot//net.minecraft.client.main.Main.main(Main.java:250)
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Render thread
Stacktrace:
at knot//me.pepperbell.continuity.impl.client.ProcessingContextImpl.(ProcessingContextImpl.java:20)
at knot//me.pepperbell.continuity.client.model.CtmBakedModel$CtmQuadTransform.(CtmBakedModel.java:104)
at knot//me.pepperbell.continuity.client.model.ModelObjectsContainer.(ModelObjectsContainer.java:10)
at java.base/java.lang.ThreadLocal$SuppliedThreadLocal.initialValue(ThreadLocal.java:305)
at java.base/java.lang.ThreadLocal.setInitialValue(ThreadLocal.java:195)
at java.base/java.lang.ThreadLocal.get(ThreadLocal.java:172)
at knot//me.pepperbell.continuity.client.model.ModelObjectsContainer.get(ModelObjectsContainer.java:18)
at knot//me.pepperbell.continuity.impl.client.ContinuityFeatureStatesImpl.get(ContinuityFeatureStatesImpl.java:16)
at knot//me.pepperbell.continuity.api.client.ContinuityFeatureStates.get(ContinuityFeatureStates.java:10)
at knot//net.minecraft.class_901.handler$zlo000$continuity$beforeRenderModel(class_901.java:515)
at knot//net.minecraft.class_901.method_3965(class_901.java:45)
at knot//net.minecraft.class_901.method_3936(class_901.java:17)
at knot//net.minecraft.class_898.method_3954(class_898.java:145)
at knot//net.minecraft.class_761.method_22977(class_761.java:1574)
at knot//net.minecraft.class_761.invokeRenderEntity(class_761.java)
at knot//net.irisshaders.iris.shadows.ShadowRenderer.renderEntities(ShadowRenderer.java:635)
at knot//net.irisshaders.iris.shadows.ShadowRenderer.renderShadows(ShadowRenderer.java:504)
at knot//net.irisshaders.iris.pipeline.IrisRenderingPipeline.renderShadows(IrisRenderingPipeline.java:1022)
at knot//net.minecraft.class_761.handler$bmc000$iris$renderTerrainShadows(class_761.java:7552)
at knot//net.minecraft.class_761.method_22710(class_761.java:1241)
at knot//net.minecraft.class_757.method_3188(class_757.java:1110)

-- Entity being rendered --
Details:
Entity Type: minecraft:falling_block (net.minecraft.class_1540)
Entity ID: 179
Entity Name: Falling Gravel
Entity's Exact location: -1592.50, 16.49, 1019.50
Entity's Block location: World: (-1593,16,1019), Section: (at 7,0,11 in -100,1,63; chunk contains blocks -1600,-64,1008 to -1585,319,1023), Region: (-4,1; contains chunks -128,32 to -97,63, blocks -2048,-64,512 to -1537,319,1023)
Entity's Momentum: 0.00, -0.57, 0.00
Entity's Passengers: []
Entity's Vehicle: null
Immitating BlockState: Block{minecraft:gravel}

Install Indium.