Please help with activating Windows

Confirmation ID (CID):
152513-830690-545420-636993-616011-627795-501342-399965

Activation via command line as administrator:
cscript.exe "%windir%\system32\slmgr.vbs" /atp 152513830690545420636993616011627795501342399965
cscript.exe "%windir%\system32\slmgr.vbs" /ato

Thanks a lot

Later at any time you can re-activate your OS as Windows 10 Enterprise LTSC 2021 with valid MAK-key if you catch it here or purchase it.

You need to make phone-call to MS Support.
Overwise you can activate with this Script and get Windows 10 IoT Enterprise LTSC 2021 with Digital License.