Fixed some problems withnameconverter routine

LoadStockDbFromTrans/StocksProviders/DapperStocksProvider.cs

@@ -91,6 +91,12 @@ namespace LoadStockDbFromTrans.StocksProviders
             SELECT *
             FROM StockNames";
 
+        private const string WEB_STOCKNAMES_EXISTS = @"
+            SELECT CAST(
+                CASE WHEN EXISTS (
+                    SELECT 1 FROM StockNames WHERE StockNameWeb = @StockNameWeb)
+                THEN 1 ELSE 0 END as BIT)";
+
         private readonly SqliteDbConnectionFactory _sqliteDbConnectionFactory;
         private readonly ILogger<DapperStocksProvider> _log;
 
@@ -212,6 +218,13 @@ namespace LoadStockDbFromTrans.StocksProviders
             using (IDbConnection database = _sqliteDbConnectionFactory.Connect())
             {
 
+                var exists = await database.ExecuteScalarAsync<bool>(WEB_STOCKNAMES_EXISTS, new { StockNameWeb = stockNameWeb });
+
+                if (!exists)
+                {
+                    await AddWebStockNames(stockNameWeb);
+                }
+
                 object parameters = new
                 {
                     StockNameBank = stockNameBank,