OfflineParser error when specifiying target

[JustNOTRO]

[20:40:35 ERROR]: [Server thread] Error while executing command java.lang.NoSuchMethodError: 'org.bukkit.OfflinePlayer org.bukkit.Bukkit.getOfflinePlayerIfCached(java.lang.String)' at net.apartium.cocoabeans.commands.spigot.parsers.OfflinePlayerParser.parse(OfflinePlayerParser.java:32) ~[?:?] at net.apartium.cocoabeans.commands.CommandOption.handle(CommandOption.java:84) ~[?:?] at net.apartium.cocoabeans.commands.CommandBranchProcessor.handle(CommandBranchProcessor.java:88) ~[?:?] at net.apartium.cocoabeans.commands.CommandManager.handle(CommandManager.java:76) ~[?:?] at net.apartium.cocoabeans.commands.spigot.SpigotCommandManager.handle(SpigotCommandManager.java:104) ~[?:?] at net.apartium.core.spigot.commands.SpigotCoreCommandManagerImpl.lambda$handle$0(SpigotCoreCommandManagerImpl.java:50) ~[?:?] at net.apartium.core.commands.CommandRunner.lambda$handle$1(CommandRunner.java:47) ~[?:?] at net.apartium.core.libs.com.mongodb.client.internal.ClientSessionImpl.withTransaction(ClientSessionImpl.java:211) ~[?:?] at net.apartium.core.libs.com.mongodb.client.internal.ClientSessionImpl.withTransaction(ClientSessionImpl.java:199) ~[?:?] at net.apartium.core.data.mongodb.MongoTransaction.executeAndCommit(MongoTransaction.java:74) ~[?:?] at net.apartium.core.commands.CommandRunner.handle(CommandRunner.java:45) ~[?:?] at net.apartium.core.spigot.commands.SpigotCoreCommandManagerImpl.handle(SpigotCoreCommandManagerImpl.java:50) ~[?:?] at net.apartium.cocoabeans.commands.spigot.SpigotCommandManager$1.execute(SpigotCommandManager.java:79) ~[?:?] at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:144) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:747) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1429) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1241) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:59) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:15) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:52) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) ~[?:?] at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?] at org.imanity.imanityspigot.thread.TickTask.run(TickTask.java:18) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at org.imanity.imanityspigot.thread.ThreadHandler.executeTask(ThreadHandler.java:95) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at org.imanity.imanityspigot.thread.ThreadHandlerReentrant.executeTask(ThreadHandlerReentrant.java:25) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at org.imanity.imanityspigot.thread.ThreadHandler.executeNext(ThreadHandler.java:67) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.MinecraftServer.executeNext(MinecraftServer.java:1944) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at org.imanity.imanityspigot.thread.ThreadHandler.awaitTasks(ThreadHandler.java:78) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.MinecraftServer.sleepForTick(MinecraftServer.java:1917) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:850) ~[server-dev-SNAPSHOT.jar:git-iSpigot-PaperEdition] at java.lang.Thread.run(Thread.java:840) ~[?:?]