could not store skills:
java.sql.SQLException: Duplicate key or integrity constraint violation message f
rom server: "Duplicate entry '70-268445635' for key 1"
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1997)
        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1167)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1278)
        at com.mysql.jdbc.Connection.execSQL(Connection.java:2251)
        at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1371)

        at com.mchange.v2.sql.filter.FilterPreparedStatement.execute(FilterPrepa
redStatement.java:164)
        at net.sf.l2j.gameserver.ClientThread.storeRecipeBook(ClientThread.java:
277)
        at net.sf.l2j.gameserver.ClientThread.saveCharToDisk(ClientThread.java:1
39)
        at net.sf.l2j.gameserver.ClientThread.onDisconnect(ClientThread.java:116
)
        at net.sf.l2j.gameserver.Connection.close(Connection.java:179)
        at net.sf.l2j.gameserver.SelectorThread.closeClient(SelectorThread.java:
571)
        at net.sf.l2j.gameserver.SelectorThread.readData(SelectorThread.java:390
)
        at net.sf.l2j.gameserver.SelectorThread.run(SelectorThread.java:234)