"Invalid config from http://xmage.info/xmage/config.json"

Anyone else getting this error when starting?
"Invalid config from http://xmage.info/xmage/config.json"
"Invalid config from http://xmage.info/xmage/config.json"
High Quality Resources for Collectible Card Games
https://www.slightlymagic.net/forum/
https://www.slightlymagic.net/forum/viewtopic.php?f=70&t=17223