Sorry, yYou have reserved too many public usernames. You can revokelinks. Try revoking the link from an older group or channel, or create a private one of your older groups or channels, or create a private entity instead.
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抱歉，您已使用太多公开用户名。您可以废除其中一条群组/频道的链接，或者创建一条私密链接。
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Deleted Account,
Dec 11, 2018 at 16:30