If you cannot open On-Screen TakeOff within ConQuest Q Series or you are unable to use the Q-Measurements function, then it means that you don't have RabbitMQ integration installed.
The first thing you need to check is if the RabbitMQ is present on your server or your machine. To do that:
Go to the Windows Start Menu
Search for Services
Try to find the RabbitMQ service in that list and check if it's running.
If the service is not present, please proceed with a support member.
