Hi bijad,
I don't have experiences with adapter USB to V24. When I bought my last notebook, only with V24 Port and parallel Port for Dongles!! Always troubles with adapter.
The error messages are typical for no V24 connection.
Your chance is a Pc/laptop with serial port, or another adapter, who has all pin.
If it is a Pc, look for V24 PC-card. Many Motherboards have a connector for V24, but not a Port Slot.
Don't forget that you always need the crossover cable to the Sopho port.
I hope you have luck with another try.
Regards
Werner