The Community Scheme Wiki is temporarily offline for maintenance.
It is expected to resume normal operation on Thursday, Jan 4, 2018.
The Community Scheme Wiki runs on an AWS EC2 instance, which today was subjected to a mandatory emergency update by AWS, as described at: https://aws.amazon.com/security/security-bulletins/AWS-2018-013/
However, the instance in question has not been rebooted in several years, and experienced a configuration issue on reboot. In order to resolve this most cleanly, the wiki will be migrated to an updated instance.
For any questions, please contact antonvs8 at gmail.