You're getting that error because the map your character was on at the time of log out is broken. You'll just have to wait until the maps get fixed, if they haven't already been.
[PS Vita] Atelier Rorona Plus (34%/on hold)
[PS Vita] Atelier Totori Plus (1%/on hold)
[PS Vita] Atelier Meruru Plus (100% completed)
[PS Vita] Atelier Ayesha Plus (20%/now playing)
[PS3] Mugen Souls Z (just started)