Wow, nice display ! Must be nice to build in Blender at such resolution
The error is probably because you have an Area lamp in your scene, and Korman doesn't know what to do with it since there is no equivalent in Plasma. Change the lamp type (Cone might work, Point and Sun do), or don't set it as a Plasma object and it should fix it.
(BTW: instead of taking a picture of the error box as it pops up, you can simply use Window→Toggle System Console. Easier to take a picture of it before it disappears...)
As for importing Ages: Korman can't do it, you'll have to use the old PyPRP for this. You can then reopen the file in Blender 2.7 after saving it.
(Importing Ages to Blender is at least as tricky as exporting to Uru, because of how different Plasma and Blender are. Since PyPRP does a pretty good job already, there is no need to rewrite it from scratch for Korman.)