What browser do you use?
Do you have the lovense USB or do you want to use the app?
If you use chrome you can get the chrome extention here along with the instructions on how to add it to chrome:
https://lovense.com/cam-model/guides/Written-Guides/Installation-Guides/Extension-–-Chrome
If you are using the app then you need to download and log into the app, there's a button for scan qr code and when you log into the extention, on the right side of the settings page click the button to connect to mobile device (I think thats what it says, going from memory here), it gives you a qr code to scan to link the browser to the app thats connected to the toy