Error

AnswerFileUploader.vue:119 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'length')
    at ReactiveEffect.fn (AnswerFileUploader.vue:119:60)
    at ReactiveEffect.run (chunk-KXCK2VL7.js?v=0feb6d48:423:19)
    at get value (chunk-KXCK2VL7.js?v=0feb6d48:1387:35)
    at unref (chunk-KXCK2VL7.js?v=0feb6d48:1267:29)
    at Object.get (chunk-KXCK2VL7.js?v=0feb6d48:1273:35)
    at AnswerFileUploader.vue:18:64
    at Proxy.renderFnWithContext (chunk-ASXWPJ22.js?v=0feb6d48:827:13)
    at Proxy.<anonymous> (chunk-7MW2BSXS.js?v=0feb6d48:653:53)
    at renderComponentRoot (chunk-ASXWPJ22.js?v=0feb6d48:876:17)
    at ReactiveEffect.componentUpdateFn [as fn] (chunk-ASXWPJ22.js?v=0feb6d48:5751:46)