DS-7720 Transceiver Licence Activation

Hello, I receved several 32Gbps Transceivers with the Feature Key Activation.

When I try to access the website [https://fusion.emc.com/assetMgmt/] to generate the licence file, sometimes I get HTTP error 400, another times there is no place to submit any information at all.

I don´t know what to do in this case.