Hello, i have a issue, crash, i don't know, but it's bad, really bad. It's been like this since October 2015, it happens only when i start the server, can you help me?

This is the issue:
[21:45:41] [Thread-1602/INFO]: [Autorank] Could not fetch UUID of player 'boza_redstar'!
[21:45:41] [Thread-1603/INFO]: [Autorank] Could not fetch UUID of player '666999'!
[21:45:41] [Thread-1604/INFO]: [Autorank] Could not fetch UUID of player '666999'!
[21:45:42] [Thread-1605/INFO]: [Autorank] Could not fetch UUID of player 'ItzAki'!
[21:45:42] [Thread-1606/INFO]: [Autorank] Could not fetch UUID of player 'ItzAki'!
[21:45:42] [Thread-1607/INFO]: [Autorank] Could not fetch UUID of player 'duleiki'!
[21:45:42] [Thread-1608/INFO]: [Autorank] Could not fetch UUID of player 'duleiki'!

It's like this, only with other players.

Could you try dev build 466?

Removed due to inactivity.