Hi!
Recently I upgrade site from v7 to v8.14, I’ve been getting this error, it’s repeating all day (every 5-10mins) even when I believe there are no users present. I have machine key set. Any ideas by what it’s caused?
Exception information:
Exception type: CryptographicException
Exception message: Error occurred during a cryptographic operation.
at System.Web.Security.Cryptography.HomogenizingCryptoServiceWrapper.HomogenizeErrors(Func`2 func, Byte[] input)
at System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket)
at Umbraco.Core.StringExtensions.DecryptWithMachineKey(String value) in D:\a\1\s\src\Umbraco.Core\StringExtensions.cs:line 315
at Umbraco.Web.UmbracoHelper.DecryptAndValidateEncryptedRouteString(String ufprt, IDictionary`2& parts) in D:\a\1\s\src\Umbraco.Web\UmbracoHelper.cs:line 828
at Umbraco.Web.Mvc.RenderRouteHandler.GetFormInfo(RequestContext requestContext) in D:\a\1\s\src\Umbraco.Web\Mvc\RenderRouteHandler.cs:line 137
at Umbraco.Web.Mvc.RenderRouteHandler.GetHandlerForRoute(RequestContext requestContext, PublishedRequest request) in D:\a\1\s\src\Umbraco.Web\Mvc\RenderRouteHandler.cs:line 330
at System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context)
at Umbraco.Web.UmbracoInjectedModule.ProcessRequest(HttpContextBase httpContext) in D:\a\1\s\src\Umbraco.Web\UmbracoInjectedModule.cs:line 144
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/106964-exception-message-error-occurred-during-a-cryptographic-operation