Cloud销售订单保存WebServices接口报错

Cloud销售订单保存WebServices接口报错，什么原因？
之前调试成功，重启了一次服务器就开始一直报错。
{
"Creator": "String",
"NeedUpDateFields": [
"FBillNo",
"FBillTypeID",
"FBusinessType",
"FDate",
"FSaleOrgId",
"FCustId",
"FSettleCurrId",
"FContactor",
"FTEL",
"FAddress",
"FRemarks",
"FHeadDeliveryWay",
"FSVTime",
"FBillAllAmount",
"FDiscountAmount",
"FVoucherAmount",
"FVoucherID",
"FFreight",
"FGift",
"FPresell_Discount",
"FCustAmount",
"FTotalQty",
"FSalerId",
"SAL_SaleOrder__FSaleOrderFinance",
"FExchangeTypeId",
"FExchangeRate",
"FRecConditionId",
"SAL_SaleOrder__FSaleOrderEntry",
"FMaterialId",
"FSettleOrgIds",
"FBaseUnitId",
"FBaseUnitQty",
"FUnitID",
"FQty",
"FTaxPrice",
"FTaxRate",
"FPrice",
"FAllAmount",
"FTaxAmount",
"FAmount"
],
"Model": {
"FBillNo": "RRSO-20151022-001",
"FBillTypeID": {
"FNumber": "XSDD01_SYS"
},
"FBusinessType": {
"FNumber": "NORMAL"
},
"FDate": "2015-10-22",
"FSaleOrgId": {
"FNUMBER": "100"
},
"FCustId": {
"FNUMBER": "100001"
},
"FSettleCurrId": {
"FNUMBER": "PRE001"
},
"FContactor": "李四",
"FTEL": "13892039403",
"FAddress": "上海市徐汇区88",
"FRemarks": "卖家备注测试",
"FHeadDeliveryWay": {
"FNUMBER": "1"
},
"FSVTime": "2015-10-22 10:59:31",
"FBillAllAmount": "4000.98",
"FDiscountAmount": "34.33",
"FVoucherAmount": "76.8",
"FVoucherID": "uuu888",
"FFreight": "18.33",
"FGift": "66889ddd",
"FPresell_Discount": "65.44",
"FCustAmount": "3600.45",
"FTotalQty": "15",
"FSalerId": {
"FNUMBER": "46"
},
"SAL_SaleOrder__FSaleOrderFinance": {
"FExchangeTypeId": {
"FNumber": "HLTX01_SYS"
},
"FExchangeRate": 1,
"FRecConditionId": {
"FNUMBER": "2"
}
},
"SAL_SaleOrder__FSaleOrderEntry": [
{
"FMaterialId": {
"FNumber": "1010040"
},
"FSettleOrgIds": {
"FNumber": "100"
},
"FBaseUnitId": {
"FNumber": "001"
},
"FBaseUnitQty": "6",
"FUnitID": {
"FNumber": "001"
},
"FQty": "6",
"FTaxPrice": "1170",
"FTaxRate": "17",
"FPrice": "1000",
"FAllAmount": "11700",
"FTaxAmount": "1700",
"FAmount": "10000"
},
{
"FMaterialId": {
"FNumber": "1010043"
},
"FSettleOrgIds": {
"FNumber": "100"
},
"FBaseUnitId": {
"FNumber": "001"
},
"FBaseUnitQty": "4",
"FUnitID": {
"FNumber": "001"
},
"FQty": "4",
"FTaxPrice": "1170",
"FTaxRate": "17",
"FPrice": "1000",
"FAllAmount": "11700",
"FTaxAmount": "1700",
"FAmount": "10000"
}
]
}
}