Error core 90k, followed by error code 5003 (October 15, 2013, 5:20pm Eastern)

[Zaltec]

Time: 10:45pm EST
Frequency: Once
World name: Hyperion
Character name: Zaltec Sheep
NPC name: N/A
Monster name: N/A
Class/Level: Paladin 42
Party or solo: Small Party
Area and coordinates: The Stone Vigil (Dungeon instance)
Steps:
1. Error 90k
2. Error 5003 Authentication Error
3. Logout back to desktop

Also occurred approximately 3 hours after I logged in.