500 Servlet Exception

java.lang.NumberFormatException: 2506Romanian
	at java.lang.Integer.parseInt(Integer.java:435)
	at java.lang.Integer.parseInt(Integer.java:476)
	at _recensamant__jsp._jspService(/recensamant.jsp:55)
	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 org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:101)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:57)
	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:536)

Resin 2.1.12 (built Tue Dec 9 14:58:25 PST 2003)