On their official website, it has been announced that the international versions of Tales of the Rays will be shutting down on May 29th, 2018. The purchasing of Mirrogems has also been disabled as of the posting of the announcement, as well as a statement on their Facebook page.
No exact reason was given for the closure. It should also be noted that only the international version is shutting down at this time. Those who are playing the Japanese version will still be able to play.
The staff of the development and publishing team extended their thanks, and ask that fans "please continue to enjoy Tales of the Rays until the very end."