As I can see your device is already linked to your cloud account. Now you need to connect your Bolt device to a wifi network.
You will require two phones for setting up your Bolt device.
Q. I don’t have a Wi-Fi network but I have hotspot feature on my mobile phone? How can I connect Bolt to my phone’s hotspot?
When you are setting up your Bolt for the first time, You need Bolt IoT app and wifi network. In case you don’t have the wifi connection at your home then you need two smartphones for setting up your Bolt. In the first phone install the Bolt IoT app and create a hotspot from the second phone. Now open Bolt IoT app in the first phone and log in with your login credentials and click on Add Device button and follow the onscreen instructions and in the last screen, it will ask to connect your bolt to second phone’s hotspot and your Bolt will be restarted and will connect to your second phone’s hotspot. https://docs.boltiot.com/docs
Ignore the warning message (This device is already linked to your account.)
Do let me know in case you need further assistance.