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Hello, 

I have recently upgraded one of our sites to 7.5 (using the deployment center, and installing nuget package: Install-Package EPiServer.CMS.UI -Version 7.19.1 - as this seems to contain all the latest dependencies as well)

but now I get error: 

System.Data.SqlClient.SqlDataReader.CheckDataIsReady(Int32 columnIndex, Boolean allowPartiallyReadColumn, Boolean permitAsync, String methodName) +6712526 System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) +81 System.Data.SqlClient.SqlDataReader.GetValueInternal(Int32 i) +43 System.Data.SqlClient.SqlDataReader.GetValue(Int32 i) +151 EPiServer.DataAccess.ContentListDB.b__0() +860 EPiServer.Data.Providers.c__DisplayClass1`1.b__0() +60 EPiServer.Data.Providers.SqlTransientErrorsRetryPolicy.Execute(Func`1 method) +150 EPiServer.Web.SiteDefinition.get_WasteBasket() +271 EPiServer.Core.ContentReference.get_WasteBasket() +132 EPiServer.Core.PageData.get_LinkURL() +206 EPiServer.Web.Routing.MultiplexingRouteHandler.GetPathRouteHandler(String path, PageData page, String language) +60 EPiServer.Web.Routing.MultiplexingRouteHandler.GetPageRouteHandler(Object routedData, String path, String language, Boolean return404) +47 EPiServer.Web.Routing.MultiplexingRouteHandler.GetRouteHandlerOrRedirect(RequestContext requestContext, Object routedData, Boolean throw404IfNotFound) +300 EPiServer.Web.Routing.MultiplexingRouteHandler.GetRouteHandler(RequestContext requestContext) +343 EPiServer.Web.Routing.MultiplexingRouteHandler.GetHttpHandler(RequestContext requestContext) +22 System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context) +12773767 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +165Can anyone help with where I can try diagnosing this? Many thanks!Gabor