The KA Lite Central Server is in the process of being deprecated.
You have until March 1st, 2020 to export your data. After that date, the service will be completely taken down.
KA Lite is no longer being actively developed, and it's being replaced by Kolibri, a free and Open Source, second-generation platform that contains all of KA Lite videos and exercises, and many, many more content sources and pedagogical tools. You can test it here, and download it here.
If you do require a similar central data syncing service, please contact us via [email protected], so we can best assess your needs and how we can support.