Minor fix

wesweb01/todo2021/app.rb

@@ -46,11 +46,15 @@ get "/todos/:tid/edit" do
 	db.results_as_hash = true
 	todo = db.execute("SELECT * FROM Todos WHERE id = ?", tid).first  
 
+	begin
 		if( todo["user_id"] == session[:id] ) then
 			slim :"todos/edit", locals: {todo: todo}
 		else
 			"401, access denied!"
 		end
+	rescue => err
+		"500, TODO not found."
+	end
 end
 
 post "/todos/:tid/update" do