Obviously it has no NBT data, so it crashes. It should probably have an error on the tooltip or something in this case.
[15Nov2022 21:31:57.296] [Render thread/ERROR] [net.minecraft.client.Minecraft/FATAL]: Reported exception thrown!
net.minecraft.ReportedException: Rendering screen
at net.minecraft.client.renderer.GameRenderer.m_109093_(GameRenderer.java:903) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.Minecraft.m_91383_(Minecraft.java:1046) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.Minecraft.m_91374_(Minecraft.java:665) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.main.Main.main(Main.java:205) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
at net.minecraftforge.fml.loading.targets.CommonClientLaunchHandler.lambda$launchService$0(CommonClientLaunchHandler.java:31) ~[fmlloader-1.18.2-40.1.84.jar%2317!/:?]
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%235!/:?]
at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?]
Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraft.nbt.CompoundTag.m_128451_(String)" because the return value of "net.minecraft.world.item.ItemStack.m_41783_()" is null
at com.annabelle.potionflasks.potionflask.PotionFlaskItem.m_142522_(PotionFlaskItem.java:89) ~[potionflasks-1.1.2-1.18.2.jar%23134!/:1.1.2-1.18.2]
at net.minecraft.world.item.ItemStack.m_150947_(ItemStack.java:357) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.renderer.entity.ItemRenderer.m_115174_(ItemRenderer.java:338) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.gui.screens.inventory.AbstractContainerScreen.m_97799_(AbstractContainerScreen.java:249) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.gui.screens.inventory.AbstractContainerScreen.m_6305_(AbstractContainerScreen.java:108) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.gui.screens.inventory.EffectRenderingInventoryScreen.m_6305_(EffectRenderingInventoryScreen.java:30) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraft.client.gui.screens.inventory.CreativeModeInventoryScreen.m_6305_(CreativeModeInventoryScreen.java:605) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
at net.minecraftforge.client.ForgeHooksClient.drawScreenInternal(ForgeHooksClient.java:403) ~[forge-1.18.2-40.1.84-universal.jar%23166!/:?]
at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:396) ~[forge-1.18.2-40.1.84-universal.jar%23166!/:?]
at net.minecraft.client.renderer.GameRenderer.m_109093_(GameRenderer.java:890) ~[client-1.18.2-20220404.173914-srg.jar%23161!/:?]
... 16 more
Obviously it has no NBT data, so it crashes. It should probably have an error on the tooltip or something in this case.