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Error while rendering the view [BookingJourney].

System.ArgumentNullException: Value cannot be null. Parameter name: source at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector) at Sitecore.LayoutService.Helpers.ItemUrlHelper.GetSiteWithoutVirtualFolder() at Sitecore.LayoutService.Serialization.FieldSerializers.BaseFieldSerializer.GetLinkUrl(Item item) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.GetLinkUrl(Item item) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.GetProperties(Item item, MultilistField field, Int32 depth) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.WriteValueObject(IEnumerable`1 items, MultilistField field, JsonTextWriter writer, Int32 depth) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.WriteValue(Field field, JsonTextWriter writer) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.Serialize(Field field, JsonTextWriter writer) at Sitecore.LayoutService.Serialization.ItemSerializers.BaseItemSerializer.SerializeItem(Item item, SerializationOptions options) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.GetProperties(Item item, MultilistField field, Int32 depth) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.WriteValueObject(IEnumerable`1 items, MultilistField field, JsonTextWriter writer, Int32 depth) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.WriteValue(Field field, JsonTextWriter writer) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.Serialize(Field field, JsonTextWriter writer) at Sitecore.LayoutService.Serialization.ItemSerializers.BaseItemSerializer.SerializeItem(Item item, SerializationOptions options) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.GetProperties(Item item, MultilistField field, Int32 depth) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.WriteValueObject(IEnumerable`1 items, MultilistField field, JsonTextWriter writer, Int32 depth) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.WriteValue(Field field, JsonTextWriter writer) at Sitecore.LayoutService.Serialization.FieldSerializers.MultiListFieldSerializer.Serialize(Field field, JsonTextWriter writer) at Sitecore.LayoutService.Serialization.ItemSerializers.BaseItemSerializer.SerializeItem(Item item, SerializationOptions options) at Sitecore.LayoutService.ItemRendering.ContentsResolvers.RenderingContentsResolver.ProcessItem(Item item, Rendering rendering, IRenderingConfiguration renderingConfig) at Sitecore.LayoutService.Presentation.Pipelines.RenderJsonRendering.ResolveRenderingContents.GetResolvedContents(RenderJsonRenderingArgs args) at Sitecore.LayoutService.Presentation.Pipelines.RenderJsonRendering.ResolveRenderingContents.SetResult(RenderJsonRenderingArgs args) at (Object , Object ) at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain) at Sitecore.LayoutService.Presentation.Pipelines.RenderJsonRendering.RenderJsonRenderingPipeline.GetResult(RenderJsonRenderingArgs args) at Sitecore.LayoutService.Presentation.JsonDataRenderer.Render(TextWriter writer) at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Render(Renderer renderer, TextWriter writer, RenderRenderingArgs args) at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Process(RenderRenderingArgs args) at Tvs.Foundation.ErrorHandling.Pipelines.Response.RenderRendering.ExecuteRenderer.Process(RenderRenderingArgs args) in D:\a\1\s\src\Foundation\ErrorHandling\code\Pipelines\RenderRendering\ExecuteRenderer.cs:line 33