The term "Air eLicenser" refers to the legendary crack of the software by the scene group . In the world of software reverse-engineering, this release was considered a technical feat. By emulating the eLicenser environment, the group managed to make the software functional without the physical USB dongle.
While ReFX never officially published a "221" error handbook, community consensus (from KVR Audio, Gearspace, and ReFX forums) defines as: refx nexus 221 air elicenser 221
