On first look, your Server Name appears like it may be too long, for arguement's sake, try something shorter.
Where is the server running? As in is if from your own pc or is it hired from a company - If its from a company, contact them, they should support your query. If its from your own computer, you need to make sure the port (63392) in this case is open and accepting connections.
(I feel this may be a local server as the port used in the config, seems too high and close to default to be from a company, but I could be wrong).
Max cars in race is incorrect. For demo you can have 16 connections, but still only 11 cars in the race.
Rest of it is fine.