Fix tests

SpigotCore_Main/src/de/steamwar/command/SWCommand.java

@@ -105,8 +105,6 @@ public abstract class SWCommand {
         } catch (CommandFrameworkException e) {
             if (Bukkit.getServer() != null) {
                 Bukkit.getLogger().log(Level.SEVERE, "", e);
-            }
-            if (Core.MESSAGE != null) {
                 Core.MESSAGE.send("COMMAND_SYSTEM_ERROR", sender);
             }
             throw e;