Nhibernate add/update issue after adding a new column on ASP.NET MVC

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MVC

NHibernate

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Please help me with the below issue.
I have added a new column to Existing Table and Rebuild the code and It works fine when reading a record.

public TEntity Get(int id) {      
  Session.CacheMode = CacheMode.Normal;
  var entity = Session.Get<TEntity>(id);
  return entity;
}

While Saving the changes I'm getting the below exception

public bool Update(TEntity entity)
{
   Session.Transaction.Begin();
   Session.SaveOrUpdate(entity);
   Session.Flush();
   Session.Transaction.Commit(); (Exception at this line)
   return true;
}

Exception Details:
Message: could not execute batch command.[SQL: SQL not available]
Inner Exception: {"Invalid column name 'UseTerms'."}    
Stack Trace:
at NHibernate.Engine.ActionQueue.BeforeTransactionCompletionProcessQueue.BeforeTransactionCompletion()
   at NHibernate.Impl.SessionImpl.BeforeTransactionCompletion(ITransaction tx)
   at NHibernate.Transaction.AdoTransaction.Commit()
   at WebApp.Core.Data.NHibernateData.Repositories.NHibernateRepository`1.Update(TEntity entity) in D:\WebApp\Core\WebApp.Core.Data.NHibernateData\Repositories\NHibernateRepository.cs:line 55
   at WebApp.Core.Logic.Configuration.GroupConfigurationLogic.SaveGroupConig[TEntity,TDto](Int32 groupId, IRepository`1 repository, TDto dto) in D:\WebApp\Core\WebApp.Core.Logic\Configuration\GroupConfigurationLogic.cs:line 63
   at WebApp.Core.Logic.Configuration.ConfigurationService.SaveGroupConfiguration(GroupConfigurationDto groupConfiguration, Guid updatedBy) in D:\WebApp\Core\WebApp.Core.Logic\Configuration\ConfigurationService.cs:line 91
   at WebApp.Core.Wcf.ConfigurationService.SaveGroupConfiguration(GroupConfigurationDto groupConfiguration, Guid updatedBy) in D:\WebApp\Core\WebApp.Core.Wcf\ConfigurationService.svc.cs:line 24
   at SyncInvokeSaveGroupConfiguration(Object , Object[] , Object[] )
   at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
   at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)

What I have tried:

I have tried 2 Ways to Create a New Column

1) Open the designer and create a new column in Sql (which results the same exception)
2) Using FluentMigrator Up Method I have created a new column (Column is created and after recompile and execute the application - same exception is resulting)

using FluentMigrator;

namespace WebApp.Core.Migrations.Release7_21 
{
	[Migration(202006082020, "AchConfiguration Migration")]
	public class AchConfigurationMigration : Migration 
	{
        public override void Up() {         
            Create.Column("UseTerms").OnTable("AchConfiguration").InSchema("config")
               .AsBoolean().NotNullable().WithDefaultValue(1);
        }
        public override void Down() {
            
        }
	}
}