Error in file D:\server\gameserver\data\stats\weapon\0257_ViperCanine.xml
java.lang.NullPointerException
        at net.sf.l2j.gameserver.skills.DocumentItem.parseItem(DocumentItem.java
:118)
        at net.sf.l2j.gameserver.skills.DocumentItem.parseDocument(DocumentItem.
java:105)
        at net.sf.l2j.gameserver.skills.DocumentBase.parse(DocumentBase.java:81)

        at net.sf.l2j.gameserver.skills.SkillsEngine.loadData(SkillsEngine.java:
156)
        at net.sf.l2j.gameserver.skills.SkillsEngine.loadWeapons(SkillsEngine.ja
va:126)
        at net.sf.l2j.gameserver.ItemTable.<init>(ItemTable.java:238)
        at net.sf.l2j.gameserver.ItemTable.getInstance(ItemTable.java:167)
        at net.sf.l2j.gameserver.GameServer.<init>(GameServer.java:211)
        at net.sf.l2j.gameserver.GameServer.main(GameServer.java:452)