Expiring certificate for Nextcloud?

My DAV syncing app just notified me that the certificate for share.mayfirst.org expires today, January 30 2020. Is this something that will renew tomorrow? Is there something I should do to validate on my end?

I found an existing support ticket (https://support.mayfirst.org/ticket/16254) which is probably a better place for this discussion.

Thanks for the heads up! the problem has been resolved now. Opening a support ticket is the best place to report these kinds of errors in the future but we appreciate your attention.