Dapper MySql Query C# - Object reference not set to an instance of an object

I am trying a simple dapper query using the "GetMessages()" method below but keep running into an "Object reference not set to an instance of an object" error. Sometimes when I restart my computer it will return the full query, but other times it returns the error. I can see that I am connected to the database and that the query starts, however, after loading about 500mb into memory it will randomly stop query and return the error. From what I can tell the connection is never set to null.

Here is the query class:

public class MySqlDatabaseQueries
{
    #region Private Properties

    private IDbConnection _connection { get; }

    private readonly string _reportingMessageQueryString = "Use reporting;\nSELECT *\nFROM message;";

    #endregion

    #region Public Methods

    public IEnumerable<Message> GetMessages() =>
        _connection.Query<Message>(_reportingMessageQueryString);
        

    #endregion

    #region Constructor

    public MySqlDatabaseQueries(IDbConnection connection)
    {
        _connection = connection;
    }

    #endregion
}

Here is what is calling the query class

public class Program
    {
        static void Main(string[] args)
        {

            // Asks user for user name'
            Console.WriteLine();
            Console.WriteLine("Please provide your username and password for the database.");
            Console.Write("UserName: ");
            string userName = Console.ReadLine();

            // Ask user for password
            Console.Write("Password: ");
            string password = Console.ReadLine();

            // Data base query variables
            IEnumerable<Message> messages;

            // Creates the data base connection
            MySqlDatabaseHelper dbhelper = new MySqlDatabaseHelper(userName,password);
            using (IDbConnection connection = dbhelper.CreateConnection())
            {
                // Initialize query helper
                MySqlDatabaseQueries queryHelper = new MySqlDatabaseQueries(connection);

                // Queries the faq table.  Joins with the conditions stable to get the KB Article and repository
                messages = queryHelper.GetMessages();
            }
        }
    }

Here is the output of the error

System.NullReferenceException
  HResult=0x80004003
  Message=Object reference not set to an instance of an object.
  Source=MySql.Data
  StackTrace:
   at MySql.Data.MySqlClient.MySqlConnection.get_ServerThread()
   at MySql.Data.MySqlClient.MySqlConnection.HandleTimeoutOrThreadAbort(Exception ex)
   at MySql.Data.MySqlClient.MySqlDataReader.Read()
   at Dapper.SqlMapper.<QueryImpl>d__140`1.MoveNext() in /_/Dapper/SqlMapper.cs:line 1096
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Dapper.SqlMapper.Query[T](IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Boolean buffered, Nullable`1 commandTimeout, Nullable`1 commandType) in /_/Dapper/SqlMapper.cs:line 721
   at Socrates.ReportingDatabaseFaqTagging.DatabaseHelper.MySqlDatabaseQueries.GetMessages() in C:\Users\grwom\source\repos\Socrates.ReportingDatabaseFaqTagging\Socrates.ReportingDatabaseFaqTagging\DatabaseHelper\MySqlDatabaseQueries.cs:line 34
   at Socrates.ReportingDatabaseFaqTagging.Program.Main(String[] args) in C:\Users\grwom\source\repos\Socrates.ReportingDatabaseFaqTagging\Socrates.ReportingDatabaseFaqTagging\Program.cs:line 48