Fixed CDP not failing when haven't met the requirements (#3887)

src/map/skill.cpp

@@ -7680,8 +7680,10 @@ int skill_castend_nodamage_id (struct block_list *src, struct block_list *bl, ui
 		break;
 	case ASC_CDP:
 		if(sd) {
-			clif_skill_nodamage(src,bl,skill_id,skill_lv,1);
-			skill_produce_mix(sd, skill_id, ITEMID_POISON_BOTTLE, 0, 0, 0, 1, -1); //Produce a Poison Bottle.
+			if(skill_produce_mix(sd, skill_id, ITEMID_POISON_BOTTLE, 0, 0, 0, 1, -1)) //Produce a Poison Bottle.
+				clif_skill_nodamage(src,bl,skill_id,skill_lv,1);
+			else
+				clif_skill_fail(sd,skill_id,USESKILL_FAIL_STUFF_INSUFFICIENT,0);
 		}
 		break;