Wrongly left the guild

Here is the guild page: https://classic.warcraftlogs.com/guild/calendar/561764/
One of our members create this guild but the owner wrongly click the “leave guild”, so the guild is totally empty, we cannot manage this guild or use this guild for logs now, is there any way we can join it back? Or can Admin delete this guild so we can create a new one with same name?

Best regards,