It sounds like one of your administrators either removed it, flipped the project over to a non-Service-Desk type, or Service Desk has expired/been-removed.
If it's the second, then you should be able to recover it by getting them to change the project back to the right type.
For the third, re-enable or re-licence it.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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