500 Servlet Exception

java.lang.NullPointerException
	at _fr._listing._photo_0gallery__jsp._jspService(/data1/packages/apps/resin/webapps/ROOT/fr/listing/photo_gallery.jsp:97)
	at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
	at com.caucho.jsp.Page.subservice(Page.java:506)
	at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
	at com.caucho.server.http.Invocation.service(Invocation.java:315)
	at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
	at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:222)
	at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:103)
	at com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.java:80)
	at com.yw.filters.RewriteFilter.doFilter(RewriteFilter.java:320)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.filters.SEOFilter.doFilter(SEOFilter.java:143)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.web.filter.XSSFilter.doFilter(XSSFilter.java:38)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:130)
	at org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.acegi.filter.ServerNameFilterToBeanProxy.doFilter(ServerNameFilterToBeanProxy.java:58)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.acegi.filter.ServerNameFilterToBeanProxy.doFilter(ServerNameFilterToBeanProxy.java:58)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.crm.filter.TrackContactFilter.doFilter(TrackContactFilter.java:71)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.filters.UserIdFilter.doFilter(UserIdFilter.java:108)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.filters.ReactCookieFilter.doFilter(ReactCookieFilter.java:61)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.localization.filter.LocaleParamFilter.doFilter(LocaleParamFilter.java:67)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.util.metrics.filter.StartTimeFilter.doFilter(StartTimeFilter.java:46)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.web.filter.RootDirFilter.doFilter(RootDirFilter.java:137)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.yw.filters.XSSFilter.doFilter(XSSFilter.java:21)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:63)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
	at com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java:88)
	at com.caucho.server.http.Invocation.service(Invocation.java:315)
	at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
	at com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:346)
	at com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java:274)
	at com.caucho.server.TcpConnection.run(TcpConnection.java:139)
	at java.lang.Thread.run(Thread.java:748)