Craft item bug

Hi . I have a problem that when I want to load these items , the first levels are allowed but the second and third levels have a crash plugin  . It says error the item permission has been added to another object. Every one of the 3 items mentioned below contains 3 levels that I would like to put in a separate level.

Config Example :

{
  "VWeaponsDescription": [
    "You can add more medical items",
    "HealAmount - instant heal",
    "HealOverTimeAmount - healing over time",
    "Bleed , Poison , Radiation - decrease those",
    "EnabledBuff = true/false (will buff be enabled or disabled for that item)",
    "MaxHealthIncrease - 0.1 is 110 hp ,1 is 200 HP ,10 is 1100 HP",
    "Duration - how much buff will lasts (seconds)",
    "CmdGiveName - this name is for give command /givemed + (cmdgivename)"
  ],
  "Meds": [
    {
      "ItemDisplayName": "Bandage Lv1",
      "ItemShortname": "bandage",
      "SkinID": 3054607253,
      "CmdGiveName": "ba1",
      "Instant Heal": 100.0,
      "Heal Over Time": 100.0,
      "Bleed": -100.0,
      "Poison": -50.0,
      "Radiation": -100.0,
      "Enabled": false,
      "MaxHealthIncrease": 10.0,
      "Duration": 60.0
    }.
    {
      "ItemDisplayName": "Syringe Lv2",
      "ItemShortname": "syringe.medical",
      "SkinID": 3054594972,
      "CmdGiveName": "sy2",
      "Instant Heal": 100.0,
      "Heal Over Time": 100.0,
      "Bleed": -100.0,
      "Poison": -50.0,
      "Radiation": -100.0,
      "Enabled": true,
      "MaxHealthIncrease": 10.0,
      "Duration": 60.0
    },
    {
      "ItemDisplayName": "LargeMedKit Lv3",
      "ItemShortname": "largemedkit",
      "SkinID": 3054597441,
      "CmdGiveName": "mkit3",
      "Instant Heal": 100.0,
      "Heal Over Time": 100.0,
      "Bleed": -100.0,
      "Poison": -50.0,
      "Radiation": -100.0,
      "Enabled": true,
      "MaxHealthIncrease": 10.0,
      "Duration": 60.0
    }

Hello, sorry for not responding for so long.
Please send me the part of my plugin's configuration where you added these items.