Mobile trapper

System.InvalidCastException: Unable to cast object of type 'System.Int64' to type 'System.String'.
   at Chainbox.Domain.Model.ExtraFieldHelper.GetExtraField[T](Object obj, String key) in /_/Chainbox.Webshop.Foundation/Core/Chainbox.Domain/IExtensible.cs:line 27
   at Chainbox.Webshop.Foundation.Components.Variants.VirtualVariantRepository.<>c.<GetAll>b__3_2(IProductDTO prod) in /_/Chainbox.Webshop.Foundation/Components/Variants/VirtualVariantRepository.cs:line 30
   at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
   at Chainbox.Webshop.Foundation.Components.Variants.VirtualVariantRepository.GetAll() in /_/Chainbox.Webshop.Foundation/Components/Variants/VirtualVariantRepository.cs:line 22
   at Chainbox.Webshop.Foundation.Components.Variants.BulkCachedVariantRepository.EnsureBulkLoaded() in /_/Chainbox.Webshop.Foundation/Components/Variants/BulkCachedVariantRepository.cs:line 37
   at Chainbox.Webshop.Foundation.Factories.WebProductFactory.GetVariants(IProductDTO prod) in /_/Chainbox.Webshop.Foundation/Factories/WebProductFactory.cs:line 368
   at Chainbox.Webshop.Foundation.Factories.WebProductFactory.Create(IProductDTO prod, ICustomerDTO customer, CultureInfo culture, String language) in /_/Chainbox.Webshop.Foundation/Factories/WebProductFactory.cs:line 413
   at Chainbox.Webshop.Website.Controllers.Partials.ProductListPagedViewComponent.<>c__DisplayClass17_0.<InvokeAsync>b__6(IProductDTO x) in /home/jenkins/agent/workspace/alulock-webshop-v5/Chainbox.Webshop.Website/Controllers/Partials/ProductListingSurfaceController.cs:line 700
   at System.Linq.Enumerable.SelectArrayIterator`2.Fill(ReadOnlySpan`1 source, Span`1 destination, Func`2 func)
   at System.Linq.Enumerable.SelectArrayIterator`2.ToList()
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Chainbox.Webshop.Website.Controllers.Partials.ProductListPagedViewComponent.InvokeAsync(String categoryid) in /home/jenkins/agent/workspace/alulock-webshop-v5/Chainbox.Webshop.Website/Controllers/Partials/ProductListingSurfaceController.cs:line 698
   at Microsoft.AspNetCore.Mvc.ViewComponents.DefaultViewComponentInvoker.InvokeAsyncCore(ObjectMethodExecutor executor, Object component, ViewComponentContext context)
   at Microsoft.AspNetCore.Mvc.ViewComponents.DefaultViewComponentInvoker.InvokeAsync(ViewComponentContext context)
   at Microsoft.AspNetCore.Mvc.ViewComponents.DefaultViewComponentInvoker.InvokeAsync(ViewComponentContext context)
   at Microsoft.AspNetCore.Mvc.ViewComponents.DefaultViewComponentHelper.InvokeCoreAsync(ViewComponentDescriptor descriptor, Object arguments)
   at AspNetCoreGeneratedDocument.Views_Partials_grid_editors_cbx_template_items_render.ExecuteAsync() in /home/jenkins/agent/workspace/alulock-webshop-v5/Chainbox.Webshop.Website/Views/Partials/grid/editors/cbx.template.items.render.cshtml:line 32
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts)
   at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.HtmlHelper.RenderPartialCoreAsync(String partialViewName, Object model, ViewDataDictionary viewData, TextWriter writer)
   at Microsoft.AspNetCore.Mvc.ViewFeatures.HtmlHelper.PartialAsync(String partialViewName, Object model, ViewDataDictionary viewData)
   at AspNetCoreGeneratedDocument.Views_Partials_grid_editors_base.ExecuteAsync() in /home/jenkins/agent/workspace/alulock-webshop-v5/Chainbox.Webshop.Website/Views/Partials/grid/editors/base.cshtml:line 5