HTTP ERROR 400

Problem accessing /search/. Reason:

    Unable to parse URI query

Caused by:

org.eclipse.jetty.http.BadMessageException: 400: Unable to parse URI query
	at org.eclipse.jetty.server.Request.getParameters(Request.java:406)
	at org.eclipse.jetty.server.Request.getParameter(Request.java:1036)
	at com.vng.zing.stats.Profiler.createThreadProfilerInHttpProc(Profiler.java:208)
	at com.vng.znews.engine.servlet.web.BaseHandler.doHandle(BaseHandler.java:122)
	at com.vng.znews.engine.servlet.web.BaseHandler.doGet(BaseHandler.java:96)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:205)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:61)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:502)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
	at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.IllegalArgumentException: Not valid encoding '%&n'
	at org.eclipse.jetty.util.UrlEncoded.decodeHexByte(UrlEncoded.java:889)
	at org.eclipse.jetty.util.UrlEncoded.decodeUtf8To(UrlEncoded.java:354)
	at org.eclipse.jetty.util.UrlEncoded.decodeUtf8To(UrlEncoded.java:296)
	at org.eclipse.jetty.http.HttpURI.decodeQueryTo(HttpURI.java:616)
	at org.eclipse.jetty.server.Request.extractQueryParameters(Request.java:438)
	at org.eclipse.jetty.server.Request.getParameters(Request.java:402)
	... 29 more

Caused by:

java.lang.IllegalArgumentException: Not valid encoding '%&n'
	at org.eclipse.jetty.util.UrlEncoded.decodeHexByte(UrlEncoded.java:889)
	at org.eclipse.jetty.util.UrlEncoded.decodeUtf8To(UrlEncoded.java:354)
	at org.eclipse.jetty.util.UrlEncoded.decodeUtf8To(UrlEncoded.java:296)
	at org.eclipse.jetty.http.HttpURI.decodeQueryTo(HttpURI.java:616)
	at org.eclipse.jetty.server.Request.extractQueryParameters(Request.java:438)
	at org.eclipse.jetty.server.Request.getParameters(Request.java:402)
	at org.eclipse.jetty.server.Request.getParameter(Request.java:1036)
	at com.vng.zing.stats.Profiler.createThreadProfilerInHttpProc(Profiler.java:208)
	at com.vng.znews.engine.servlet.web.BaseHandler.doHandle(BaseHandler.java:122)
	at com.vng.znews.engine.servlet.web.BaseHandler.doGet(BaseHandler.java:96)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:205)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
	at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:61)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:502)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
	at java.lang.Thread.run(Thread.java:750)