nullptr fix

src/factory/PlayerbotFactory.cpp

@@ -1017,8 +1017,10 @@ void PlayerbotFactory::ClearSkills()
     }
     bot->SetUInt32Value(PLAYER_SKILL_INDEX(0), 0);
     bot->SetUInt32Value(PLAYER_SKILL_INDEX(1), 0);
+    
     // unlearn default race/class skills
-    PlayerInfo const* info = sObjectMgr->GetPlayerInfo(bot->getRace(), bot->getClass());
+    if (PlayerInfo const* info = sObjectMgr->GetPlayerInfo(bot->getRace(), bot->getClass()))
+    {    
         for (PlayerCreateInfoSkills::const_iterator itr = info->skills.begin(); itr != info->skills.end(); ++itr)
         {
             uint32 skillId = itr->SkillId;
@@ -1026,6 +1028,7 @@ void PlayerbotFactory::ClearSkills()
                 continue;
             bot->SetSkill(skillId, 0, 0, 0);
         }
+    }    
 }
 
 void PlayerbotFactory::ClearEverything()