BulkCopy error: The locale id '1025' of the source column 'CreatedBy' and the locale id '1033' of the destination column 'CreatedBy' do not match

Using the SqlBulkCopy class, I'm executing SQL bulk copy. I made my destination table precisely the same as my source table when I established it. They are identical in terms of table name, column names, data types, and even collation. I also completed the SQL mapping to guarantee correctness.

Here is my code:

SqlConnection SourceConnection =  new SqlConnection(SourceConnectionString);
SqlConnection DestinationConnection =  new SqlConnection(DestinationConnectionString);

DestinationConnection.Open();
SourceConnection.Open();

SqlCommand commandSourceData = new SqlCommand("SELECT * FROM Requisitions;", SourceConnection);

SqlDataReader reader = commandSourceData.ExecuteReader();    

    using (SqlBulkCopy bulkCopy = new SqlBulkCopy(DestinationConnection))

    {
           bulkCopy.DestinationTableName = "Requisitions";


           bulkCopy.ColumnMappings.Add("RequisitionId", "RequisitionId");
           bulkCopy.ColumnMappings.Add("CreatedBy", "CreatedBy");
           bulkCopy.ColumnMappings.Add("DateCreated", "DateCreated");
           bulkCopy.ColumnMappings.Add("AircraftTailNum", "AircraftTailNum");
           bulkCopy.ColumnMappings.Add("JobNumber", "JobNumber");
           bulkCopy.ColumnMappings.Add("ShopCode", "ShopCode");
           bulkCopy.ColumnMappings.Add("RequestedByName", "RequestedByName");
           bulkCopy.ColumnMappings.Add("RequestedById", "RequestedById");
           bulkCopy.ColumnMappings.Add("Status", "Status");
           bulkCopy.ColumnMappings.Add("IsCancelled", "IsCancelled");
           bulkCopy.ColumnMappings.Add("IsProcessed", "IsProcessed");


           try
               {
                  // Write from the source to the destination.
                  bulkCopy.WriteToServer(reader);
                }
          catch (Exception ex)
                {
                     Console.WriteLine(ex.Message);
                 }
          finally
                 {

                    reader.Close();
                  }
          }

But each time I ran my code, I encountered the following error:

The locale id '1025' of the source column 'CreatedBy' and the locale id '1033' of the destination column 'CreatedBy' do not match.

I've looked all over the internet for a solution, but to no avail. If someone could assist me, I would be eternally grateful.