ERROR 之类的报错 我是真找不到办法了 求懂哥

[ERROR] Trace:

TypeError: Cannot use 'in' operator to search for 'Durability' in undefined

    at Function.addMissingCondition (G:\EFT\obj\bundle.js:27097:40)

    at Function.getItemCondition (G:\EFT\obj\bundle.js:27074:32)

    at Function.createOffer (G:\EFT\obj\bundle.js:26959:27)

    at Function.generateTraderOffers (G:\EFT\obj\bundle.js:26873:21)

    at Function.update (G:\EFT\obj\bundle.js:26822:23)

    at Function.load (G:\EFT\obj\bundle.js:26656:19)

    at Object.load [as aki-ragfair] (G:\EFT\obj\bundle.js:16667:19)

    at Function.load (G:\EFT\obj\bundle.js:27461:27)

    at Function.main (G:\EFT\obj\bundle.js:15143:9)

    at Object.103../Lib.js (G:\EFT\obj\bundle.js:15148:9)