Sony's PlayStation Network has recently racked up an abnormal amount of downtime for maintenance, but that hasn't kept it problem free: the company has acknowledged that users have experienced PS Store download errors, and has apologized for the problem in the EU PlayStation Forums. Users have reported that PS Store errors have prevented them from downloading games and DLC they've already paid for, and some have reported that the list of title's they've purchased has disappeared completley. Sony says their engineers are working on the problem, but it's not clear if the issue is related to recent maintenance: the company has yet to reveal any information about the cause or nature of the error.