Help me
Error when running on purpur 1.21.4:

[07:27:44 ERROR]: Error occurred while enabling zfriends v1.0.0 (Is it up to date?)
java.lang.NullPointerException: Cannot invoke "org.gaminghuzai.zfriends.managers.FriendManager.getFriendships()" because the return
value of "org.gaminghuzai.zfriends.ZFriends.getFriendManager()" is null
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.storage.DataStorage.loadFriendships(DataStorage.java:74) ~[zfriends-1.0.0.jar
:?]
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.storage.DataStorage.loadData(DataStorage.java:45) ~[zfriends-1.0.0.jar:?]
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.storage.DataStorage.initialize(DataStorage.java:38) ~[zfriends-1.0.0.jar:?]
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.ZFriends.onEnable(ZFriends.java:49) ~[zfriends-1.0.0.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:280) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[purpur-1.2
1.4.jar:1.21.4-2416-51aafbc]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[purpur-1.21.4.jar:
1.21.4-2416-51aafbc]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:671) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:620) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:746) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:491) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:365) ~[purpur-1.21.4.jar:1.21.4-2416-51aaf
bc]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1178) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
[07:27:44 INFO]: [zfriends] Disabling zfriends v1.0.0
[07:27:44 ERROR]: Error occurred while disabling zfriends v1.0.0
java.lang.NullPointerException: Cannot invoke "org.gaminghuzai.zfriends.managers.FriendManager.getFriendships()" because the return
value of "org.gaminghuzai.zfriends.ZFriends.getFriendManager()" is null
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.storage.DataStorage.saveFriendships(DataStorage.java:100) ~[zfriends-1.0.0.ja
r:?]
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.storage.DataStorage.saveAll(DataStorage.java:54) ~[zfriends-1.0.0.jar:?]
at zfriends-1.0.0.jar/org.gaminghuzai.zfriends.ZFriends.onDisable(ZFriends.java:74) ~[zfriends-1.0.0.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:286) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.disablePlugin(PaperPluginInstanceManager.java:237) ~[purpur-1.
21.4.jar:1.21.4-2416-51aafbc]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.disablePlugin(PaperPluginManagerImpl.java:114) ~[purpur-1.21.4.jar
:1.21.4-2416-51aafbc]
at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:550) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?
]
at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:206) ~[purpur-1.2
1.4.jar:1.21.4-2416-51aafbc]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[purpur-1.21.4.jar:
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:620) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:746) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:491) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:365) ~[purpur-1.21.4.jar:1.21.4-2416-51aaf
bc]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1178) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313) ~[purpur-1.21.4.jar:1.21.4-2416-51aafbc]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]