📍 Description (REQUIRED)

Unable to load item on Peper 1.16.5

📑 Steps to reproduce the Issue (REQUIRED)

1. open server
2. This server is running Paper version git-Paper-444 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
3. [18:15:07 INFO]: Slimefun version 4.8-dev-210116
   [18:15:07 INFO]: Slimefun basically turns your entire Server into a FTB modpack without installing a single mod
   [18:15:07 INFO]: Website: https://github.com/TheBusyBiscuit/Slimefun4
   [18:15:07 INFO]: Author: The Slimefun 4 Community

💡 Expected behavior (REQUIRED)

[18:11:02 INFO]: ######################### - Slimefun v4.8-dev-210116 - #########################
[18:11:02 INFO]:
[18:11:02 INFO]: 成功加载了 0 个物品和 248 个研究
[18:11:02 INFO]: ( 0 物品来自本体, 0 个物品来自 1 扩展 )
[18:11:02 INFO]:
[18:11:02 INFO]:
[18:11:02 INFO]: - 源码: https://github.com/StarWishsama/Slimefun4
[18:11:02 INFO]: - Bug 反馈: https://github.com/StarWishsama/Slimefun4/issues

📜 Server Log

[18:10:54 ERROR]: [Slimefun] Item "ELYTRA_CAP" from Slimefun v4.8-dev-210116 has caused an Error!
[18:10:54 ERROR]: [Slimefun] You can report it here: https://github.com/StarWishsama/Slimefun4/issues
[18:10:54 ERROR]: [Slimefun] Registering ElytraCap - 'ELYTRA_CAP' (Slimefun v4.8-dev-210116) has failed!
java.lang.NullPointerException: null
at me.mrCookieSlime.Slimefun.Objects.SlimefunItem.SlimefunItem.checkForDeprecations(SlimefunItem.java:574) ~[?:?]
at me.mrCookieSlime.Slimefun.Objects.SlimefunItem.SlimefunItem.onEnable(SlimefunItem.java:482) ~[?:?]
at me.mrCookieSlime.Slimefun.Objects.SlimefunItem.SlimefunItem.register(SlimefunItem.java:449) ~[?:?]
at io.github.thebusybiscuit.slimefun4.implementation.setup.SlimefunItemSetup.setup(SlimefunItemSetup.java:2434) ~[?:?]
at io.github.thebusybiscuit.slimefun4.implementation.SlimefunPlugin.loadItems(SlimefunPlugin.java:586) ~[?:?]
at io.github.thebusybiscuit.slimefun4.implementation.SlimefunPlugin.onPluginStart(SlimefunPlugin.java:237) ~[?:?]
at io.github.thebusybiscuit.slimefun4.implementation.SlimefunPlugin.onEnable(SlimefunPlugin.java:156) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.5.jar:git-Paper-444]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:380) ~[patched_1.16.5.jar:git-Paper-444]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:483) ~[patched_1.16.5.jar:git-Paper-444]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:501) ~[patched_1.16.5.jar:git-Paper-444]
at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:415) ~[patched_1.16.5.jar:git-Paper-444]
at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:464) ~[patched_1.16.5.jar:git-Paper-444]
at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:239) ~[patched_1.16.5.jar:git-Paper-444]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:935) ~[patched_1.16.5.jar:git-Paper-444]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173) ~[patched_1.16.5.jar:git-Paper-444]
at java.lang.Thread.run(Thread.java:834) [?:?]

📂 /error-reports/ Folder

🧭 Environment (REQUIRED)

• Server Software: This server is running Paper version git-Paper-444 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
• Minecraft Version: 1.16.5
• Slimefun Version: v4.8-stable-201213

Wrong GitHub. This is the official, English Slimefun not Chinese fork. Go make this issue over there: https://github.com/StarWishsama/Slimefun4/issues