I'm so excited to come back to wow and see that this project is still being maintained! After following the directions and installing the latest version (10.0.9), I'm having trouble restoring from my old RDX_recovery.lua file.
Debugging -> Open ErrorDialog gave me this:
Interface\AddOns\RDX\ObjectMgr\Install\Recovery.lua:139: bad argument #1 to 'pairs' (table expected, got nil)
Interface\AddOns\RDX\ObjectMgr\Install\Recovery.lua:139: in function `DeleteThemes'
Interface\AddOns\RDX\PanelMgr\ClassicMenuBar.lua:160: in function <Interface\AddOns\RDX\PanelMgr\ClassicMenuBar.lua:160>
Also, some menu items aren't responding to clicks (possibly related?)