Fix: Catch and Print Virtuoso Errors

src/SQL2Linked/StructuralData.cs

@@ -47,6 +47,8 @@ namespace SQL2Linked
         private void StoreGraphs(IEnumerable<IGraph> graphs)
         {
             foreach (var graph in graphs)
+            {
+                try
                 {
                     Console.WriteLine($" ({graph.BaseUri})");
                     var exists = WrapRequest(() => RdfStoreConnector.HasGraph(graph.BaseUri));
@@ -63,6 +65,14 @@ namespace SQL2Linked
                     Console.WriteLine($" - Graph {graph.BaseUri} added successfully");
                     Console.WriteLine();
                 } 
+                catch (Exception e)
+                {
+                    Console.Error.WriteLine($"Error on ({graph.BaseUri}):");
+                    Console.Error.WriteLine(e);
+                    Console.Error.WriteLine(e.InnerException);
+                    Console.Error.WriteLine();
+                }
+            }
         }
 
         public void AssertToGraphUriNode(IGraph graph, string graphSubject, string graphPredicate, string? graphObject)