With Windows, there are 2 considerations. Operation and Licensing.
"onthhub" is absolutely not a valid reseller of a Windows OS license.
Multiple unfortunate things can happen with a 'not-legit' license key
One of which is eventual Unactivation.
The laptop I'm typing this on is a victim of such.
Purchased late Feb 2019, refurb from a 3rd party seller on Newegg.
Exactly 6 months later, poof...the Windows OS that was installed on it when I got it reports as Unactivated.
The OS that came with it is not what was installed from the factory.
But whatever. I buy a system, it comes with an OS, I expect it to be a valid OS.
This appears to be an OS license from some corporation. Which is exactly where places like 'onthehub' obtain theirs and how they can sell them so cheaply.
It is a Volume License Key, and it expects/requires to check in to a corporate key management server at east once every 6 months.
As said...the laptop I'm typing this on right now is suffering through this.
The second consideration is the operation.
The validity of the license key has little or nothing to do with the operation of the OS.
Bluescreen, whatever.
Either where you got the OS install from is not quite right, or you have some hardware issues.
You need to create a new USB Win 10 install, do a full wipe and reinstall.
If the problems still occur, then you delve in to hardware issues.