On October 1st, our Letsencrypt certificate expired, and automatic renewel failed.
Something is preventing Letsencrypt from renewing the wildcard certificate, so we have fallen back to requesting individual certificates for all branchable.com subdomains.
Due to Letsencrypt rate limiting, this is taking some time to complete. In the meantime, affected sites are only available via http, not https.
If this outage is causing you particular problems, contact us and we'll try to prioritize getting a certificate for your site.