Maximum Health Not Increasing

I have a set of equipment that uses MaxHealth, but it does not successfully increase the maximum health.
Please assist in resolving this issue.  


"setInfo": {
        "4": {
          "setBonus": {
            "BonusMultiplier": {
              "modifier": 0.5,
              "Permissions [permission / title]": null
            },
            "MaxHealth": {
              "modifier": 0.5,
              "Permissions [permission / title]": null
            }
          }
        },
        "6": {
          "setBonus": {
            "BonusMultiplier": {
              "modifier": 1.5,
              "Permissions [permission / title]": null
            },
            "MaxHealth": {
              "modifier": 1.5,
              "Permissions [permission / title]": null
            }
          }
        },
        "7": {
          "setBonus": {
            "BonusMultiplier": {
              "modifier": 2.5,
              "Permissions [permission / title]": null
            },
            "MaxHealth": {
              "modifier": 3.0,
              "Permissions [permission / title]": null
            }
          }
        }
      }
    },

My server uses your plugins for all enhanced equipment or status effects, and it doesn’t have any of the additional plugins you mentioned.