It was just canceled last year, but discontinued altogether.
From the [url=https://www.bungie.net/en/Explore/Detail/News/50040]announcement[/url] last year
[quote]
Some of you may be asking about the fate of Crimson Doubles, our once-a-year Crimson Days playlist. This mode is currently being shifted to the Destiny Content Vault but may return in the future.
[/quote]
English
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Thanks ,that's all I needed to know