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

-- Head --
Thread: Render thread
Stacktrace:
at com.qouteall.hiding_in_the_bushes.ModMenuConfigEntry.lambda$getModConfigScreenFactory$1(ModMenuConfigEntry.java:25)
at io.github.prospector.modmenu.ModMenu.getConfigScreen(ModMenu.java:44)
at io.github.prospector.modmenu.gui.ModsScreen.lambda$init$1(ModsScreen.java:91)
at net.minecraft.class_4185.method_25306(class_4185.java:20)
at net.minecraft.class_4264.method_25348(class_4264.java:16)
at net.minecraft.class_339.method_25402(class_339.java:150)
at net.minecraft.class_4069.method_25402(class_4069.java:27)
at net.minecraft.class_312.method_1611(class_312.java:86)

-- Affected screen --
Details:
Screen name: io.github.prospector.modmenu.gui.ModsScreen
Stacktrace:
at net.minecraft.class_437.method_25412(class_437.java:416)
at net.minecraft.class_312.method_1601(class_312.java:86)
at net.minecraft.class_312.method_22686(class_312.java:150)
at net.minecraft.class_1255.execute(class_1255.java:94)
at net.minecraft.class_312.method_22684(class_312.java:150)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(RenderSystem.java:99)

-- Affected level --
Details:
All players: 1 total; [class_746['AltimusX'/161, l='ClientLevel', x=-118.86, y=67.00, z=-385.26]]
Chunk stats: Client Chunks (ImmPtl) 650
Level dimension: minecraft:overworld
Level seed: -8988759918884243722
Level generator options: NBT[{}]
Level spawn location: World: (8,64,8), Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 7782 game time, 7782 day time
Server brand: fabric
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.class_638.method_8538(class_638.java:435)
at net.minecraft.class_310.method_1587(class_310.java:1980)
at net.minecraft.class_310.method_1514(class_310.java:648)
at net.minecraft.client.main.Main.main(Main.java:204)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:192)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:140)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196)
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231)
at org.multimc.EntryPoint.listen(EntryPoint.java:143)
at org.multimc.EntryPoint.main(EntryPoint.java:34)

There is more to this but it won't help you any.