I'm afraid you need to talk to your Jira administrators, or possibily OnDemand support.
It sounds like you no longer have permission to edit in that project (although I am guessing here - I don't know what CSR-DC might mean because it's not a valid project key). That would imply a system admin has changed the permission scheme or your account.
But we're not your system support, we're a community of users of the software. We have no rights on your systems, but are happy to help with usage questions in general.
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