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，您已使用太多公共用户名。您可以撤销其中一个较旧群组或频道的链接，或创建私密链接。
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Deleted Account,
Mar 16, 2020 at 14:41