fsay error OpTalk

21.04 22:45:53 [Server] INFO ... 15 more
21.04 22:45:53 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
21.04 22:45:53 [Server] INFO at com.github.hatixon.adminchat.Loader.onCommand(Loader.java:147)
21.04 22:45:53 [Server] INFO Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:401)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.MinecraftServer.q(MinecraftServer.java:469)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.DedicatedServer.r(DedicatedServer.java:229)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.MinecraftServer.r(MinecraftServer.java:580)
21.04 22:45:53 [Server] INFO at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:66)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.ServerConnection.b(SourceFile:35)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.PlayerConnection.d(PlayerConnection.java:110)
21.04 22:45:53 [Server] INFO at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:176)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.Packet3Chat.handle(Packet3Chat.java:44)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.PlayerConnection.a(PlayerConnection.java:841)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.PlayerConnection.chat(PlayerConnection.java:896)
21.04 22:45:53 [Server] INFO at net.minecraft.server.v1_5_R2.PlayerConnection.handleCommand(PlayerConnection.java:980)
21.04 22:45:53 [Server] INFO at org.bukkit.craftbukkit.v1_5_R2.CraftServer.dispatchCommand(CraftServer.java:546)
21.04 22:45:53 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:187)
21.04 22:45:53 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
21.04 22:45:53 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'fsay' in plugin OpTalk v0.7.0
21.04 22:45:53 [Server] SEVERE null