Public key problem

I can not put in my account public key error:
The form contains the following error:
Fingerprint has already been taken

My public key was used when I was working for an organization that uses your cloud.
Please unlock this key for my account.


ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDd0ggAM7ZYQSuzwxywXXRaU7UX//mls/yd/bTAoZmauhNLvww/tpZlwpijt1yxaNgfkaL2wNChUrQfrXhjfLOKenqUdrTU3JC++vfLp6syegISZws9EYvteRzBYqEzw9kN6NwTWRjI2M+YWhpCzUcJnNpPTmSikobZFZ+FWasPd+bNk0uFEdKQYUxd5y31DXTcWK2ElzTWrKI/6Mh2R3R87oc1GZZ70BmUHxcC+06FLVFS4pDitiQkqbZKjA2Jl9wWJqixotiRsx4T0pXZpdgENNw4pzcTM6thwN1qnS2l8jlbGy1z/HOmGfUCVqddnXC6+eYNFNshKB+1lTlvJNUL joe@diversion