Host can't be null excpetion on 2nd run

[rlandfair]

I am having an issue where everything runs smoothly on the first run and then running afterwards creates a 'Host can't be null' exception. Is there something I need to clear out to run multiple deploys during the same 'session'.?

Here is the exception I get in Visual Studio in my C# project.

System.ArgumentException: 'Host can't be null'

This exception was originally thrown at this call stack:
Npgsql.NpgsqlConnectionStringBuilder.PostProcessAndValidate() in NpgsqlConnectionStringBuilder.cs
Npgsql.NpgsqlConnection.SetupDataSource() in NpgsqlConnection.cs
Npgsql.NpgsqlConnection.ConnectionString.set(string) in NpgsqlConnection.cs
Npgsql.NpgsqlConnection.NpgsqlConnection(string) in NpgsqlConnection.cs
Scytec.DBManagement.DCI.PostgreSQL.Yuniql.YuniqlSqlDataService.CreateMasterConnection() in YuniqlSqlDataService.cs
Yuniql.Core.MetadataService.IsDatabaseExists(int?) in MetadataService.cs
Yuniql.Core.MigrationService.Run(string, string, bool?, System.Collections.Generic.List<System.Collections.Generic.KeyValuePair<string, string>>, bool?, string, string, string, int?, int?, string, string, string, bool?, string, bool) in MigrationService.cs
Yuniql.Core.MigrationService.Run() in MigrationService.cs
Scytec.DBManagement.DCI.PostgreSQL.Yuniql.YuniqlDeployer.Deploy(System.Data.IDbConnection) in YuniqlDeployer.cs
Scytec.DBManagement.Client.ViewModel.MainWindowViewModel.deployDCIDatabase.AnonymousMethod__0() in MainWindowViewModel.cs
...
[Call Stack Truncated]

Here is my code.
public bool Deploy(IDbConnection? p_cnx)
{
ArgumentNullException.ThrowIfNull(p_cnx);

m_logger.Notify("Deploy starting...");

var configuration = Configuration.Instance;

configuration.Platform = "postgresql";
configuration.Workspace = Path.Combine(Environment.CurrentDirectory, "PostgreSQL\\Yuniql");
configuration.ConnectionString = p_cnx.ConnectionString;
configuration.IsDebug = true;
configuration.IsAutoCreateDatabase = true;


var migrationServiceFactory = new MigrationServiceFactory(m_traceService);
var migrationService = migrationServiceFactory.Create(new YuniqlSqlDataService(m_traceService),
    new YuniqlSqlBulkImportService(m_traceService));

migrationService.Run();

m_logger.Notify("Deploy done!");

return true;

}

Any help is appreciated.