Your device is activated with a volume license. This type of license requires the organization's activation host to reactivate the system.
If you have recently purchased a license for your device or it is still within the warranty period, I recommend contacting the vendor and requesting a replacement license key. We typically obtain a retail license if we purchase Windows separately, or an OEM license if Windows is preinstalled on the device.
Otherwise, you may need to purchase a new license to reactivate the operating system.
Please don't hesitate to contact us if you need any additional help.