Just to add to what Eblyn has been talking about, in this line
21,0,20,0,"010110ac:542a7021:1b9c:0006","mgmtdc1.dl.iraq.local",0,-1286350336,-1286350336,6,1,1412067361,1413496925,1413425384,1413496925,-1,1,1029,0,0
The problem is the '0' in the 2nd field. This produce an error in the debug.log file about 'not a memeber of the set'.
You may be able to identify the media using the media ID
omnimm -media_info 010110ac:542a7021:1b9c:0006 -detail
but, he is right, the only real solution is to delete the line, save teh file, and do the 'omnidbutil -readdb' -mmdb [path]' again