Why does this plugin cause vending machines to decay?

Here is my config settings
"config": {
"destroyOnUnload": false,
"ejectLocks": false,
"health": 1250.0,
"lockable": true,
"lockFailureMessage": false,
"saveLocks": true,
"setHealth": true,
"noBroadcast": false,
"restricted": false,
"useEconomics": false,
"useServerRewards": false,
"transactionTimeout": 300.0,
"logTransSuccess": true,
"logTransFailure": true,
"transMessages": true,
"currencyItem": "scrap"
},
"resistances": {
"Generic": 0.98,
"Hunger": 0.0,
"Thirst": 0.0,
"Cold": 0.0,
"Drowned": 0.0,
"Heat": 1.0,
"Bleeding": 0.0,
"Poison": 0.0,
"Suicide": 0.0,
"Bullet": 0.9999,
"Slash": 0.99,
"Blunt": 0.99,
"Fall": 0.0,
"Radiation": 1.0,
"Bite": 0.99,
"Stab": 0.98,
"Explosion": 0.5,
"RadiationExposure": 0.0,
"ColdExposure": 0.0,
"Decay": 0.0,
"ElectricShock": 0.0,
"Arrow": 1.0,
"AntiVehicle": 1.0,
"Collision": 1.0,
"Fun_Water": 0.0
},
"templates": {}
}