2025-07-14 12:29:32,828 [138] ERROR Spring.Transaction.Interceptor.TransactionAspectSupport - Application exception overridden by rollback exception
Spring.Transaction.TransactionSystemException: Could not roll back Hibernate transaction
 ---> NHibernate.TransactionException: Rollback failed with SQL Exception
 ---> System.InvalidOperationException: Connection must be valid and open to rollback transaction
   at MySql.Data.MySqlClient.MySqlTransaction.RollbackAsync(Boolean execAsync, CancellationToken cancellationToken)
   at MySql.Data.MySqlClient.MySqlTransaction.Rollback()
   at NHibernate.Transaction.AdoTransaction.Rollback()
   --- End of inner exception stack trace ---
   at NHibernate.Transaction.AdoTransaction.Rollback()
   at Spring.Data.NHibernate.HibernateTransactionManager.DoRollback(DefaultTransactionStatus status)
   --- End of inner exception stack trace ---
   at Spring.Data.NHibernate.HibernateTransactionManager.DoRollback(DefaultTransactionStatus status)
   at Spring.Transaction.Support.AbstractPlatformTransactionManager.ProcessRollback(DefaultTransactionStatus status)
   at Spring.Transaction.Support.AbstractPlatformTransactionManager.Rollback(ITransactionStatus transactionStatus)
   at Spring.Transaction.Interceptor.TransactionAspectSupport.CompleteTransactionAfterThrowing(TransactionInfo transactionInfo, Exception exception)