Hi,

The log is telling me this when I load or create a world with botany tree:

I think Botany tree is pointing to a recipe in pam haverstcraft that is incorrect or no longer present.

[18:22:51] [Render thread/ERROR] [minecraft/RecipeManager]: Parsing error loading recipe botanytrees:pamhc2trees/maple_sapling
com.google.gson.JsonSyntaxException: Unknown item 'pamhc2trees:mapleitem'
at net.minecraft.item.crafting.ShapedRecipe.lambda$deserializeItem$0(ShapedRecipe.java:262) ~[?:?] {re:classloading,pl:accesstransformer:B}
at java.util.Optional.orElseThrow(Unknown Source) ~[?:1.8.0_202] {}
at net.minecraft.item.crafting.ShapedRecipe.func_199798_a(ShapedRecipe.java:261) ~[?:?] {re:classloading,pl:accesstransformer:B}
at net.darkhax.botanypots.crop.HarvestEntry.deserialize(HarvestEntry.java:99) ~[botanypots:6.0.11] {re:classloading}
at net.darkhax.botanypots.crop.CropSerializer.deserializeCropEntries(CropSerializer.java:149) ~[botanypots:6.0.11] {re:classloading}
at net.darkhax.botanypots.crop.CropSerializer.read(CropSerializer.java:33) ~[botanypots:6.0.11] {re:classloading}
at net.darkhax.botanypots.crop.CropSerializer.func_199425_a_(CropSerializer.java:23) ~[botanypots:6.0.11] {re:classloading}
at net.minecraft.item.crafting.RecipeManager.func_215377_a(RecipeManager.java:141) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:polymorph.mixins.json:RecipeManagerMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorRecipeManager,pl:mixin:A}
at net.minecraft.item.crafting.RecipeManager.func_212853_a_(RecipeManager.java:61) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:polymorph.mixins.json:RecipeManagerMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorRecipeManager,pl:mixin:A}
at net.minecraft.item.crafting.RecipeManager.func_212853_a_(RecipeManager.java:38) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:polymorph.mixins.json:RecipeManagerMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorRecipeManager,pl:mixin:A}
at net.minecraft.client.resources.ReloadListener.func_215269_a(SourceFile:13) ~[?:?] {re:mixin,re:computing_frames,re:classloading}
at java.util.concurrent.CompletableFuture.uniAccept(Unknown Source) ~[?:1.8.0_202] {}
at java.util.concurrent.CompletableFuture$UniAccept.tryFire(Unknown Source) ~[?:1.8.0_202] {}
at java.util.concurrent.CompletableFuture$Completion.run(Unknown Source) ~[?:1.8.0_202] {}
at net.minecraft.resources.AsyncReloader.func_219557_a(SourceFile:71) ~[?:?] {re:classloading}
at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213166_h(SourceFile:144) ~[?:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B}
at net.minecraft.util.concurrent.RecursiveEventLoop.func_213166_h(SourceFile:23) ~[?:?] {re:mixin,re:computing_frames,re:classloading}
at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213168_p(SourceFile:118) ~[?:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B}
at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213161_c(SourceFile:127) ~[?:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B}
at net.minecraft.client.Minecraft.func_238189_a_(Minecraft.java:1858) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_238195_a_(Minecraft.java:1711) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_238192_a_(Minecraft.java:1685) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screen.CreateWorldScreen.func_195352_j(CreateWorldScreen.java:260) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screen.CreateWorldScreen.lambda$init$11(CreateWorldScreen.java:205) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.widget.button.Button.func_230930_b_(SourceFile:33) ~[?:?] {re:classloading}
at net.minecraft.client.gui.widget.button.AbstractButton.func_230982_a_(SourceFile:16) ~[?:?] {re:classloading}
at net.minecraft.client.gui.widget.Widget.func_231044_a_(Widget.java:136) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.INestedGuiEventHandler.func_231044_a_(SourceFile:27) ~[?:?] {re:computing_frames,re:classloading}
at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:87) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.screen.Screen.func_231153_a_(Screen.java:427) ~[?:?] {re:computing_frames,pl:runtimedistcleaner:A,re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.MouseHelper.func_198023_a(MouseHelper.java:85) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.MouseHelper.lambda$null$4(MouseHelper.java:175) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(SourceFile:94) ~[?:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B}
at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:174) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:109) ~[?:?] {re:classloading}
at net.minecraft.client.MainWindow.func_227802_e_(MainWindow.java:305) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:996) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) ~[?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) ~[minecraft-1.16.4-client.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_202] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_202] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_202] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_202] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[forge-1.16.4-35.1.28-launcher.jar:35.1] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.6.jar:?] {re:classloading}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.6.jar:?] {re:classloading}
at io.github.zekerzhayard.forgewrapper.installer.Main.main(Main.java:50) [ForgeWrapper-1.4.2.jar:?] {}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_202] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_202] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_202] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_202] {}
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196) [NewLaunch.jar:?] {}
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231) [NewLaunch.jar:?] {}
at org.multimc.EntryPoint.listen(EntryPoint.java:143) [NewLaunch.jar:?] {}
at org.multimc.EntryPoint.main(EntryPoint.java:34) [NewLaunch.jar:?] {}

Have a nice day.

Thanks for reporting, this should now be fixed.