Problem deactivating license to transfer to a new computer.

Tried to deactivate it, then is gives an error and says that the activation code can't be found and to input it manually. Then when I try to copy /paste the activation code , it won't copy all of it into the field (apparently there can't be that many signs in that field, I can't insert any more manually, either).
When, on the same page as you sent me a screenshot of, I go to "Show activation code", it says "The activation code is:    " (blank).
Then I tried to deactivate using the RWS licenses page and try the offline deactivation there. I get 

An error has occurred

We have a lot of licenses. This one ends -a59f-baef8cfa279d

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