If your Windows Server 2019 Standard key is blocked, you will need to contact the Microsoft Licensing Activation Centers to obtain a new Multiple Activation Key (MAK). The blocked key may prevent you from activating Windows on the new server. Once you have a new MAK, you can proceed with the activation process on the new server.
Additionally, ensure that you have access to your Customer Specific Volume License Key (CSVLK) for the new server, as this is necessary for activation.
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