[11:03:51 ERR] Произошла ошибка при маппинге данных из ОСС
System.InvalidOperationException: Sequence contains no matching element
   at void System.Linq.ThrowHelper.ThrowNoMatchException()
   at TSource System.Linq.Enumerable.Single<TSource>(IEnumerable<TSource> source, Func<TSource, bool> predicate)
   at void iRIS.KaskoLink2.Code.OSS.Mappers.MapToDeal.OssKaskoToDealMapper.MapCoveragesToVIDeal(List<OssUniCoverDto> propertyDto, Deal deal) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoLink2/Code/OSS/Mappers/MapToDeal/OssKaskoToDealMapper.cs:line 103
   at async Task iRIS.KaskoLink2.Code.OSS.Mappers.MapToDeal.OssKaskoToDealMapper.MapAsync(Deal deal, IReadOnlyList<Deal> deals, OssUniPolicyDto viewModel) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoLink2/Code/OSS/Mappers/MapToDeal/OssKaskoToDealMapper.cs:line 83
   at async Task iRIS.KaskoCore.OSS.Code.Mappers.KaskoOssMapper.MapToDealAsync(OssUniPolicyDto policyDto, Basket basket, Deal deal) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoCore.OSS/Code/Mappers/KaskoOssMapper.cs:line 347
   at async Task iRIS.InsuranceCore.OSS.Code.Mappers.BaseOssMapper.MapToDealAsync(OssUniDto uniDto, Basket basket)
   at async Task iRIS.KaskoLink2.Modification.Code.CustomProcesses.MapOssDataProcess.ExecuteAsync(IProcessContext processContext) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoLink2.Modification/Code/CustomProcesses/MapOssDataProcess.cs:line 128
[11:03:51 ERR] Sequence contains no matching element
System.InvalidOperationException: Sequence contains no matching element
   at void System.Linq.ThrowHelper.ThrowNoMatchException()
   at TSource System.Linq.Enumerable.Single<TSource>(IEnumerable<TSource> source, Func<TSource, bool> predicate)
   at void iRIS.KaskoLink2.Code.OSS.Mappers.MapToDeal.OssKaskoToDealMapper.MapCoveragesToVIDeal(List<OssUniCoverDto> propertyDto, Deal deal) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoLink2/Code/OSS/Mappers/MapToDeal/OssKaskoToDealMapper.cs:line 103
   at async Task iRIS.KaskoLink2.Code.OSS.Mappers.MapToDeal.OssKaskoToDealMapper.MapAsync(Deal deal, IReadOnlyList<Deal> deals, OssUniPolicyDto viewModel) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoLink2/Code/OSS/Mappers/MapToDeal/OssKaskoToDealMapper.cs:line 83
   at async Task iRIS.KaskoCore.OSS.Code.Mappers.KaskoOssMapper.MapToDealAsync(OssUniPolicyDto policyDto, Basket basket, Deal deal) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoCore.OSS/Code/Mappers/KaskoOssMapper.cs:line 347
   at async Task iRIS.InsuranceCore.OSS.Code.Mappers.BaseOssMapper.MapToDealAsync(OssUniDto uniDto, Basket basket)
   at async Task iRIS.KaskoLink2.Modification.Code.CustomProcesses.MapOssDataProcess.ExecuteAsync(IProcessContext processContext) in C:/Code/on-duty/b-app-kasko/sources/App/src/Modules/iRIS.KaskoLink2.Modification/Code/CustomProcesses/MapOssDataProcess.cs:line 128
   at async Task<string> iRIS.Framework.Workflow.Engine.ProcessExecutor.Draft.BlockExecutors.CustomProcessExecutor.ExecuteInner(CustomProcessModel model, RootContext rootContext)
   at async Task<BlockResult> iRIS.Framework.Workflow.Engine.ProcessExecutor.Draft.BlockExecutors.CustomProcessExecutor.ExecuteNode(CustomProcessModel model, RootContext rootContext)
   at async Task<BlockResult> iRIS.Framework.Workflow.Engine.ProcessExecutor.Draft.BlockExecutors.ProcessBlockExecutorBase<TBlock>.Execute(ProcessModel model, RootContext rootContext)
[11:03:51 WRN] Перехват необработанного исключения в модели : Ошибка выполнения блока MapOssDataProcess: Sequence contains no matching element.

Где поймать ошибку в коде?