We migrated our site to .net core about 10 days ago. Today suddenly our site was down and showing a .net core error page. Immediately, I restarted the app pool which fix the issue. I cannot remember the error properly but it was .net core white colored error page with one line. I also didn't find anything in nopcommerce error log which may be the reason for this site down. Nothing was deployed at that time or no new plugin was installed during that time. In .net core log the last couple of line before site going down are as follows
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
Executed action Nop.Web.Controllers.HomeController.Index (Nop.Web) in 303.9616ms
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
Request finished in 356.7344ms 200 text/html; charset=utf-8
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
Request starting HTTP/1.1 GET http://www.cellarlink.com.au/buy-wine-online/store/wine-red?pagenumber=12
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[1]
Executing action method Nop.Web.Controllers.CatalogController.Category (Nop.Web) with arguments (19, Nop.Web.Models.Catalog.CatalogPagingFilteringModel) - ModelState is Valid
info: Microsoft.AspNetCore.Mvc.ViewFeatures.Internal.ViewResultExecutor[1]
Executing ViewResult, running view at path /Themes/Venture/Views/Catalog/CategoryTemplate.ProductsInGridOrLines.cshtml.
info: Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker[2]
Executed action Nop.Web.Controllers.CatalogController.Category (Nop.Web) in 2951.3972ms
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
Request finished in 2997.2822ms 200 text/html; charset=utf-8
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
Request starting HTTP/1.1 GET http://www.cellarlink.com.au/buy-wine-online/store/Plugins/Feed.FrooglePlus/Content/images/5575.jpg
info: Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware[6]
The file /Feed.FrooglePlus/Content/images/5575.jpg was not modified
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
Request finished in 0.5115ms 304 image/jpeg
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
Request starting HTTP/1.1 POST http://127.0.0.1:1870/BUY-WINE-ONLINE/STORE/iisintegration 0
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
Request finished in 0.1902ms 202
Application is shutting down...
Anyone have any idea what might be the reason for this error?
