retrieving a guild
I am afraid not. If no one was left in the Guild, it dissolved. Sorry for your loss.
I understand you get 1 account rollback (under exactly what circumstances isn’t clear to me). You might be able to rollback your account to before the guild was lost. Contact support maybe they can help.
You can not receive an Account Rollback, as the ART is only used for accounts that have been compromised by an unknown third party. Even with account rollback, Guild banks, etc. are unable to be restored. Unfortunately, your Guild is gone.
Pro tip for the future: Make sure to have a friend or alternate account as co-Leader, or at least, have permission to invite.
Good luck.