I am unable to connect the device to nRF Connect programmer. Following is the error. how to resolve it? what actually is the problem?

I am unable to connect the device to nRF Connect programmer. Following is the error. how to resolve it? what actually is the problem?

Hello Timothy,
could you please check your SEGGER J-Link installation? Which version do you have installed on your operating system?
Regards,
Markus
Hello Timothy,
could you please check your SEGGER J-Link installation? Which version do you have installed on your operating system?
Regards,
Markus
I have tried on on v6.87b(default) as well as v7.20b.