Help for deactivation please

Hello, I replaced my hard disk a few days ago. Before that I had deactivated Trados Studio Freelance Plus 2021 on my computer. I was able to activate again Trados but they I changed the name of my computer. I am now told to activate my license but I get the message "No licenses are currently available for the specified activation code" and I found in my account details that my two activation codes are currently in use and none of them is available at present, which is contrary to the fact. Any help would be greatly appreciated. Thank you!

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