Error using Reflection terminal session

Hi all,

I am trying to launch existing reflection .rd3x file using reflection terminal. But I am getting below error. Am I missing anything?Please suggest. Thanks.

TerminalEmulation.OpenSessionUsingReflectionProfile InstallationPath:‘D:\app’ Profile: ‘C.rd3x’ Attach:False Session=> TerminalSession

Checking script…
Loading robot…
Running script…
L3:0 Error communicating with the emulator