Several reasons might cause this message to appear:

• This error message can be caused from Automation Studio™ software running on the background. Therefore, it is recommended to go to ``Task Manager`` (Ctrl+Alt+Delete) and end the Automation Studio™ process under Processes tab.
• Verify that you have enough memory RAM in your PC (1Gb recommended)
• Try to uninstall and then reinstall the Automation Studio™ software (the key needs to remain unplugged in both operations)