As of the moment there's nothing you can do about those quests. In order to level up for now you'll have to kill other players or Rebels/Stormtroopers depending on whether you're a Sith/Jedi. Sorry about the inconvenience.
Formerly known as HavocMC, Havoc Games has been pushing the limits of vanilla minecraft since 2012.
Home of The Mining Dead, Mine Wars, and Craft Theft Auto.