i keep getting this error.. ? how can i fix it

Code:
java.util.NoSuchElementException: No line found
        at java.util.Scanner.nextLine(Scanner.java:1516)
        at server.model.npcs.NPCDrops.loadDrops(NPCDrops.java:37)
        at server.model.npcs.NPCDrops.<init>(NPCDrops.java:15)
        at server.Server.<clinit>(Server.java:69)