Forms unexpectedly stops functioning correctly, users cannot login and gives this message
An error occurred during signin. Please try again or, if the issue persists, contact your system administrator.
this is the error log and it is solved when restarting iis pool, but other webpages are functioning perfectly
Stack Trace:
Caught exception: Laserfiche.Forms.CommonUtils.Exceptions.LFFormsException
Message: An unexpected error has occurred. [LFF502-UnexpectedError]
Inner exception: System.Data.Entity.Infrastructure.DbUpdateException
Message: An error occurred while updating the entries. See the inner exception for details.
at System.Data.Entity.Internal.InternalContext.SaveChanges()
at Laserfiche.Forms.CommonUtils.GeneralEntityContext.Commit()
at Laserfiche.Forms.CommonUtils.FormsSessionManager.AddNewSession(IEntityContext appContext, LfFormsSession newSession, SessionType type, Boolean forceKill)
at Laserfiche.Forms.CommonUtils.FormsSessionManager.CreateConnection(IEntityContext appContext, String userName, String password, String tenantName, String sessionToKill, Int32 oauth_id)
at Laserfiche.Forms.CommonUtils.LaserficheMembership.ValidateUser(IEntityContext appContext, LogOnModel account, String& authenticationCode)
at E_Forms.Controllers.AccountController.LogIn(LogOnModel model, String returnUrl)Inner exception: System.Data.Entity.Core.UpdateException
Message: An error occurred while updating the entries. See the inner exception for details.
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()
at System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction[T](Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction)
at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 operation)
at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesInternal(SaveOptions options, Boolean executeInExistingTransaction)
at System.Data.Entity.Internal.InternalContext.SaveChanges()Inner exception: System.Data.SqlClient.SqlException
Message: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
The statement has been terminated.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch[TTarget,TInterceptionContext,TResult](TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed)
at System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.Reader(DbCommand command, DbCommandInterceptionContext interceptionContext)
at System.Data.Entity.Core.Mapping.Update.Internal.DynamicUpdateCommand.Execute(Dictionary`2 identifierValues, List`1 generatedValues)
at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update()Inner exception: System.ComponentModel.Win32Exception
Message: The wait operation timed out