[Trinity] Clear Combat Bug - Gossip NPC

/*
<--------------------------------------------------------------------------->
- Developer(s): Ghostcrawler336
- Complete: %100
- ScriptName: 'Clear In Combat'
- Comment: N/A
<--------------------------------------------------------------------------->
    */
    #include "ScriptPCH.h"

    class clear_combat : public CreatureScript
    {
            public:
                    clear_combat() : CreatureScript("clear_combat")
                    {
                    }

                    bool OnGossipHello(Player * pPlayer, Creature * pCreature)
                    {
                            pPlayer->ADD_GOSSIP_ITEM(4, "Clear My Combat", GOSSIP_SENDER_MAIN, 0);
                            pPlayer->ADD_GOSSIP_ITEM(0, "Nevermind...", GOSSIP_SENDER_MAIN, 3);
                            pPlayer->PlayerTalkClass->SendGossipMenu(9425, pCreature->GetGUID());
                            return true;
                    }

                    bool OnGossipSelect(Player * Player, Creature * Creature, uint32 /*uiSender*/, uint32 uiAction)
                    {
                            if(!Player)
                                    return true;

                            switch(uiAction)
                            {
                            case 0: if(!Player->duel) // Checks if a player is in a duel or not.
                                            {
                                                  Player->ClearInCombat();
                                                  ChatHandler(Player->GetSession()).SendSysMessage("Your combat is cleared!");
                                            }
                                    else
                                    {
                                        ChatHandler(Player->GetSession()).SendSysMessage("You're in a duel! You can not use this!!");
                                        Player->PlayerTalkClass->SendCloseGossip();
                                    };
                            }
                            return true;
                    }

};

void AddSC_clear_combat()
{
            new clear_combat();
}