By looking into the logs you provided there are some incompatibilities between Axiom and Fancymenu
Description: Unexpected error
java.lang.NullPointerException: Unexpected error
at java.base/java.util.Objects.requireNonNull(Objects.java:208)
at de.keksuccino.fancymenu.events.InitOrResizeScreenEvent.<init>(InitOrResizeScreenEvent.java:17)
at de.keksuccino.fancymenu.events.InitOrResizeScreenEvent$Pre.<init>(InitOrResizeScreenEvent.java:33)
at net.minecraft.class_437.handler$cao000$fancymenu$beforeResize(class_437.java:3682)
at net.minecraft.class_437.method_25410(class_437.java)
at com.moulberry.axiom.ContextMenuManager.render(ContextMenuManager.java:76)
at com.moulberry.axiom.hooks.ScreenRenderHook.render(ScreenRenderHook.java:48)
at net.minecraft.class_329.handler$zgj000$axiom$render(class_329.java:2402)
at net.minecraft.class_329.method_1753(class_329.java:370)
at net.minecraft.class_757.method_3192(class_757.java:926)
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:468)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:74)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:88)
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:126)
at org.prismlauncher.EntryPoint.main(EntryPoint.java:71)
A detailed walkthrough of the error, its code path and all known details is as follows:
Try removing Fancymenu or axiom and tell me if it worked so far :/