[问题求助] 世界之窗出错请指请教

世界之窗, 请教

大家好刚注册的，初次来请多多指教，我是刚使用世界之窗的听说很好用也试用了一下不错，谢谢你们，可是昨天不知怎么着出现进不了空间，现进来请教。

问题提示如下：
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception java.lang.NumberFormatException: For input string: " " java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) java.lang.Integer.parseInt(Integer.java:447) java.lang.Integer.<init>(Integer.java:620) cn.kuwo.beans.playlist.Playlist.generateSid1AndSid2(Playlist.java:679) cn.kuwo.beans.playlist.Playlist.toContentByte(Playlist.java:611) cn.kuwo.bkServices.data.PlaylistService.updatePlaylistAbs(PlaylistService.java:308) cn.kuwo.bkServices.data.PlaylistService.getPlaylistAbsList(PlaylistService.java:278) cn.kuwo.bkServices.data.PlaylistService.getPlaylistAbsList(PlaylistService.java:218) cn.kuwo.servlets.mlog.HomeServlet.setPlList(HomeServlet.java:432) cn.kuwo.servlets.mlog.HomeServlet.doGet(HomeServlet.java:146) javax.servlet.http.HttpServlet.service(HttpServlet.java:627) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) cn.kuwo.servlets.TimerFilter.doFilter(TimerFilter.java:42)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.27 logs.