We're sorry to hear that you're having trouble using Live preview. Could you please share the OS and XD version and also the mobile which you're using?
We'd also request you to please check out this article: Preview your prototypes on mobile devices and try the steps mentioned and let us know if that helps.
I have the latest versions
win 10 - Xd 18.104.22.168
ios 12.3.1 - Xd 21.0( 3075)
Thank you for sharing the details, Motasemkhaleel. Could you please also share the screenshot of the error message you're getting?
Thank you for sharing the details. I'd suggest submitting your feedback here: Tethered (USB) Mobile Device Preview on Windows – Adobe XD Feedback : Feature Requests & Bugs and upvote this feature request to add your voice.