What problems must Arthur solve when he takes the throne?

After this ceremony, Arthur said he would hear complaints about injustices and crimes committed in the land since the death of his father, Uther Pendragon. They told him of how lands and castles had been taken by force, and men murdered, and men murdered, and of how knights and ladies and common people were robbed and assaulted.

Arthur ordered that all lands and properties should be returned to their rightful owners and that everyone should respect the rights of others.