I am planning to release a new version in few days. Among other developments, this version will have a libosmscout library updated to incorporate latest changes in the library. As a result, the new maps for libosmscout would be incompatible with the old versions of the server. The maps would be uploaded to the modRana.org probably tonight or tomorrow. So, if you depend on the maps and are planning a trip these days, be aware of possible disruption in the maps download service.