Failed to get entry for 792

log:
[20:47:43] [Render thread/ERROR]: Failed to create shader rendering pipeline, disabling shaders!
java.lang.IllegalStateException: Failed to get entry for 792
at net.irisshaders.iris.shaderpack.materialmap.BlockMaterialMapping.addBlockStates(BlockMaterialMapping.java:67) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.shaderpack.materialmap.BlockMaterialMapping.lambda$createBlockStateIdMap$0(BlockMaterialMapping.java:27) ~[iris-1.7.0+mc1.20.1.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectMap.lambda$forEach$0(Int2ObjectMap.java:249) ~[fastutil-8.5.9.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap$MapEntrySet.fastForEach(Int2ObjectOpenHashMap.java:1027) ~[fastutil-8.5.9.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectMap.forEach(Int2ObjectMap.java:251) ~[fastutil-8.5.9.jar:?]
at it.unimi.dsi.fastutil.ints.Int2ObjectMaps$UnmodifiableMap.forEach(Int2ObjectMaps.java:712) ~[fastutil-8.5.9.jar:?]
at net.irisshaders.iris.shaderpack.materialmap.BlockMaterialMapping.createBlockStateIdMap(BlockMaterialMapping.java:25) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.pipeline.IrisRenderingPipeline.(IrisRenderingPipeline.java:437) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.Iris.createPipeline(Iris.java:580) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.pipeline.PipelineManager.preparePipeline(PipelineManager.java:33) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.Iris.reload(Iris.java:531) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.apiimpl.IrisApiV0ConfigImpl.setShadersEnabledAndApply(IrisApiV0ConfigImpl.java:28) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.gui.screen.ShaderPackScreen.applyChanges(ShaderPackScreen.java:574) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.gui.screen.ShaderPackScreen.method_25419(ShaderPackScreen.java:527) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.irisshaders.iris.gui.screen.ShaderPackScreen.lambda$init$2(ShaderPackScreen.java:230) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.minecraft.class_4185.method_25306(class_4185.java:94) ~[client-intermediary.jar:?]
at net.minecraft.class_4264.method_25348(class_4264.java:56) ~[client-intermediary.jar:?]
at net.minecraft.class_339.method_25402(class_339.java:189) ~[client-intermediary.jar:?]
at net.minecraft.class_4069.method_25402(class_4069.java:38) ~[client-intermediary.jar:?]
at net.irisshaders.iris.gui.screen.ShaderPackScreen.method_25402(ShaderPackScreen.java:187) ~[iris-1.7.0+mc1.20.1.jar:?]
at net.minecraft.class_312.method_1611(class_312.java:98) ~[client-intermediary.jar:?]
at net.minecraft.class_437.method_25412(class_437.java:409) ~[client-intermediary.jar:?]
at net.minecraft.class_312.method_1601(class_312.java:98) ~[client-intermediary.jar:?]
at net.minecraft.class_312.method_22686(class_312.java:169) ~[client-intermediary.jar:?]
at net.minecraft.class_1255.execute(class_1255.java:102) ~[client-intermediary.jar:?]
at net.minecraft.class_312.method_22684(class_312.java:169) ~[client-intermediary.jar:?]
at org.lwjgl.glfw.GLFWMouseButtonCallback$Container.invoke(GLFWMouseButtonCallback.java:81) ~[lwjgl-glfw-3.3.1.jar:?]
at imgui.glfw.ImGuiImplGlfw.mouseButtonCallback(ImGuiImplGlfw.java:124) ~[Axiom-4.7.1-for-MC1.20.1.jar:?]
at org.lwjgl.glfw.GLFWMouseButtonCallback$Container.invoke(GLFWMouseButtonCallback.java:81) ~[lwjgl-glfw-3.3.1.jar:?]
at com.moulberry.axiom.editor.CustomImGuiImplGlfw.mouseButtonCallback(CustomImGuiImplGlfw.java:221) ~[Axiom-4.7.1-for-MC1.20.1.jar:?]
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:43) ~[lwjgl-glfw-3.3.1.jar:?]
at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.3.1.jar:?]
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3403) ~[lwjgl-glfw-3.3.1.jar:?]
at com.mojang.blaze3d.systems.RenderSystem.pollEvents(RenderSystem.java:201) ~[client-intermediary.jar:?]
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:219) ~[client-intermediary.jar:?]
at net.minecraft.class_1041.method_15998(class_1041.java:288) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1523(class_310.java:1241) ~[client-intermediary.jar:?]
at net.minecraft.class_310.method_1514(class_310.java:802) ~[client-intermediary.jar:?]
at net.minecraft.client.main.Main.main(Main.java:250) ~[1.20.1-0.16.10.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:480) ~[fabric-loader-0.16.10.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74) ~[fabric-loader-0.16.10.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.16.10.jar:?]
Caused by: net.minecraft.class_151: Non [a-z0-9/._-] character in path of location: minecraft:%walls
at net.minecraft.class_2960.method_45137(class_2960.java:252) ~[client-intermediary.jar:?]
at net.minecraft.class_2960.(class_2960.java:47) ~[client-intermediary.jar:?]
at net.irisshaders.iris.shaderpack.materialmap.BlockMaterialMapping.addBlockStates(BlockMaterialMapping.java:65) ~[iris-1.7.0+mc1.20.1.jar:?]
... 41 more