I have the QBot (original version - not updated) and love it. What is the issue exactly, can't connect it? If you have the old version you may need a different connection, as most modern things use usb nowadays. Did you get all the attachments and wires to set it up on the frame? You could ask for help at
https://www.myqbot.com/ - they are very helpful.
If your QBot is version 3 and you decide to sell it I could be interested, just send me a pm