Hi, trying to register for DebConf8 on Mar 31 lead to an error message (which is still seen) on https://penta.debconf.org/ : penta.debconf.org uses an invalid security certificate. The certificate is not trusted because the issuer certificate is not trusted. (Error code: sec_error_untrusted_issuer) Is there another possibility to register for DebConf8, under the conditions which were valid until Mar 31? Thanks, Matthias