minecraft crash on loading/reloading shaders

not sure why it's happening, can't figure it out, pls help

Unreported exception thrown!
java.lang.IllegalStateException: Buffer mapping is already disposed
    at me.jellysquid.mods.sodium.client.gl.device.GLRenderDevice$ImmediateCommandList.checkMapDisposed(GLRenderDevice.java:236)
    at me.jellysquid.mods.sodium.client.gl.device.GLRenderDevice$ImmediateCommandList.flushMappedRange(GLRenderDevice.java:221)
    at me.jellysquid.mods.sodium.client.gl.arena.staging.MappedStagingBuffer.flush(MappedStagingBuffer.java:97)
    at me.jellysquid.mods.sodium.client.gl.arena.GlBufferArena.tryUploads(GlBufferArena.java:293)
    at me.jellysquid.mods.sodium.client.gl.arena.GlBufferArena.upload(GlBufferArena.java:265)
    at me.jellysquid.mods.sodium.client.render.chunk.region.RenderRegionManager.uploadMeshes(RenderRegionManager.java:85)
    at me.jellysquid.mods.sodium.client.render.chunk.region.RenderRegionManager.uploadMeshes(RenderRegionManager.java:53)
    at me.jellysquid.mods.sodium.client.render.chunk.RenderSectionManager.processChunkBuildResults(RenderSectionManager.java:298)
    at me.jellysquid.mods.sodium.client.render.chunk.RenderSectionManager.uploadChunks(RenderSectionManager.java:286)
    at me.jellysquid.mods.sodium.client.render.SodiumWorldRenderer.setupTerrain(SodiumWorldRenderer.java:191)
    at net.minecraft.class_761.method_3273(class_761.java:16035)
    at net.minecraft.class_761.invokeSetupRender(class_761.java)
    at net.irisshaders.iris.shadows.ShadowRenderer.renderShadows(ShadowRenderer.java:424)
    at net.irisshaders.iris.pipeline.IrisRenderingPipeline.renderShadows(IrisRenderingPipeline.java:1019)
    at net.minecraft.class_761.handler$cba000$iris$renderTerrainShadows(class_761.java:10052)
    at net.minecraft.class_761.method_22710(class_761.java:1241)
    at net.minecraft.class_757.method_3188(class_757.java:1110)
    at net.minecraft.class_757.method_3192(class_757.java:880)
    at net.minecraft.class_310.method_1523(class_310.java:1219)
    at net.minecraft.class_310.method_1514(class_310.java:802)
    at net.minecraft.client.main.Main.main(Main.java:250)
    at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470)
    at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
    at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

Unreported exception thrown!
java.lang.IllegalStateException: Buffer mapping is already disposed
    at me.jellysquid.mods.sodium.client.gl.device.GLRenderDevice$ImmediateCommandList.checkMapDisposed(GLRenderDevice.java:236)
    at me.jellysquid.mods.sodium.client.gl.device.GLRenderDevice$ImmediateCommandList.flushMappedRange(GLRenderDevice.java:221)
    at me.jellysquid.mods.sodium.client.gl.arena.staging.MappedStagingBuffer.flush(MappedStagingBuffer.java:97)
    at me.jellysquid.mods.sodium.client.gl.arena.GlBufferArena.tryUploads(GlBufferArena.java:293)
    at me.jellysquid.mods.sodium.client.gl.arena.GlBufferArena.upload(GlBufferArena.java:265)
    at me.jellysquid.mods.sodium.client.render.chunk.region.RenderRegionManager.uploadMeshes(RenderRegionManager.java:85)
    at me.jellysquid.mods.sodium.client.render.chunk.region.RenderRegionManager.uploadMeshes(RenderRegionManager.java:53)
    at me.jellysquid.mods.sodium.client.render.chunk.RenderSectionManager.processChunkBuildResults(RenderSectionManager.java:298)
    at me.jellysquid.mods.sodium.client.render.chunk.RenderSectionManager.uploadChunks(RenderSectionManager.java:286)
    at me.jellysquid.mods.sodium.client.render.SodiumWorldRenderer.setupTerrain(SodiumWorldRenderer.java:191)
    at net.minecraft.class_761.method_3273(class_761.java:16035)
    at net.minecraft.class_761.invokeSetupRender(class_761.java)
    at net.irisshaders.iris.shadows.ShadowRenderer.renderShadows(ShadowRenderer.java:424)
    at net.irisshaders.iris.pipeline.IrisRenderingPipeline.renderShadows(IrisRenderingPipeline.java:1019)
    at net.minecraft.class_761.handler$cba000$iris$renderTerrainShadows(class_761.java:10052)
    at net.minecraft.class_761.method_22710(class_761.java:1241)
    at net.minecraft.class_757.method_3188(class_757.java:1110)
    at net.minecraft.class_757.method_3192(class_757.java:880)
    at net.minecraft.class_310.method_1523(class_310.java:1219)
    at net.minecraft.class_310.method_1514(class_310.java:802)
    at net.minecraft.client.main.Main.main(Main.java:250)
    at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:470)
    at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
    at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)