Error de elemento web: No se puede cargar el grupo de ensamblado. El proveedor del grupo de ensamblado del usuario generó una excepción al intentar proporcionar ensamblados de usuario para el grupo de ensamblado especificado. Id. de correlación: 05a7d69e-33d3-5041-360a-a8c87f7e1480.

Detalles del error:
[SPUserCodeExecutionPipelineFailedException: No se puede cargar el grupo de ensamblado. El proveedor del grupo de ensamblado del usuario generó una excepción al intentar proporcionar ensamblados de usuario para el grupo de ensamblado especificado.]
 
 Server stack trace:
  en Microsoft.SharePoint.UserCode.SPUserCodeAssemblyCacheManager.EnsureUserCodeAssemblyGroupIsCached(Guid siteId, SPUserCodeAssemblyGroupId userCodeAssemblyGroupId)
  en Microsoft.SharePoint.UserCode.SPUserCodeExecutionHost.Execute(Type userCodeWrapperType, Guid siteCollectionId, SPUserToken userToken, String affinity, SPUserCodeExecutionContext executionContext)
  en System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
  en System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)
 
 Exception rethrown at [0]:
  en System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
  en System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
  en Microsoft.SharePoint.Administration.ISPUserCodeExecutionHostProxy.Execute(Type userCodeWrapperType, Guid siteCollectionId, SPUserToken userToken, String affinityBucketName, SPUserCodeExecutionContext executionContext)
  en Microsoft.SharePoint.UserCode.SPUserCodeExecutionManager.Execute(Type userCodeWrapperType, SPSite site, SPUserCodeExecutionContext executionContext, SPUserCodeActivationSiteInfo activationSite)
  en Microsoft.SharePoint.UserCode.SPUserCodeExecutionManager.Execute(Type userCodeWrapperType, SPSite site, SPUserCodeExecutionContext executionContext)
  en Microsoft.SharePoint.UserCode.SPUserCodeWebPartRemoteExecutionHelper.<>c__DisplayClassa.b__9()
  en Microsoft.SharePoint.Utilities.SecurityContext.RunAsProcess(CodeToRunElevated secureCode)
  en Microsoft.SharePoint.UserCode.SPUserCodeWebPartRemoteExecutionHelper.ExecuteRequestInSandBox(HttpContext context, SPWeb web, SPWebPartManager manager, SPUserCodeWebPart userCodeWebPart)

[SqlException: Error de inicio de sesión. El inicio de sesión se realiza desde un dominio que no es de confianza y no se puede utilizar con autenticación de Windows.]
  en System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling)
  en System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
  en System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
  en System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
  en System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
  en System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
  en System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
  en System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
  en System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
  en System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
  en System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
  en System.Data.SqlClient.SqlConnection.Open()
  en Microsoft.SharePoint.Utilities.SqlSession.OpenConnection()
  en Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior, SqlQueryData monitoringData, Boolean retryForDeadLock)
  en Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, Boolean retryForDeadLock)
  en Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command)
  en Microsoft.SharePoint.Upgrade.SPDatabaseSequence.GetVersion(SPDatabase database, Guid id, Version defaultVersion, SqlSession session, SPDatabaseSequence sequence)
  en Microsoft.SharePoint.Upgrade.SPDatabaseSequence.get_SchemaVersion()
  en Microsoft.SharePoint.Upgrade.SPSequence.get_IsBackwardsCompatible()
  en Microsoft.SharePoint.Upgrade.SPUpgradeSession.IsBackwardsCompatible(Object o, Boolean bRecurse)
  en Microsoft.SharePoint.Administration.SPPersistedUpgradableObject.get_IsBackwardsCompatible()
  en Microsoft.SharePoint.Administration.SPPersistedUpgradableObject.ValidateBackwardsCompatibility()
  en Microsoft.SharePoint.SPSite.PreinitializeServer(SPRequest request)
  en Microsoft.SharePoint.SPWeb.InitializeSPRequest()
  en Microsoft.SharePoint.SPWeb.EnsureSPRequest()
  en Microsoft.SharePoint.SPWeb.get_Request()
  en Microsoft.SharePoint.SPListCollection.EnsureListsData(Guid webId, String strListName)
  en Microsoft.SharePoint.SPListCollection.EnsureListsData(String strListName)
  en Microsoft.SharePoint.SPBaseCollection.GetEnumerator()
  en Microsoft.SharePoint.SPWeb.GetCatalog(SPListTemplateType typeCatalog)
  en Microsoft.SharePoint.Administration.SPSolutionLanguagePack.GetSolutionInfoFromGallery(Guid siteId, Guid solutionId, String solutionHash, String& fileName, String& hash, Byte[]& fileBytes)
  en Microsoft.SharePoint.UserCode.SPUserCodeLightweightSolutionAssemblyGroupProvider.GetAssembliesInGroup(Guid siteId, String assemblyGroupId)
  en Microsoft.SharePoint.UserCode.SPUserCodeAssemblyCacheManager.EnsureUserCodeAssemblyGroupIsCached(Guid siteId, SPUserCodeAssemblyGroupId userCodeAssemblyGroupId)