PLEX temporarily disabled (http://community.eveonline.com/news/newsFromEve.asp?newsTitle=plex-temporarily-disabled)
6 September 2013, 8:52 am
Due to maintenance on the backend servers of our systems, we will have to temporarily disable the option to convert PLEX into game time in-game. We apologize for any inconvenience this may cause.
Source: eveonline.com | news from EVE (http://www.eveonline.com/)