Working with the Aurora starter store- provided with the FEP7- could bring some misconfiguration, in particular on the Developer version, lead to "break" the front-end, like in this case:

The above screenshot reports just the top part of the front page were is visible an issue rendering the menu. Looking at the log, an exception gets a glimpse on the possible reason:

 
[5/7/14 16:47:12:451 CEST] 00000148 LoggingHelper E /GenericJSPPageError.jsp - java.io.FileNotFoundException: http://myserverhostname:80/search/resources/store/11451/categoryview/@top?catalogId=10401&depthAndLimit=11%2C11&responseFormat=json&responseFormat=json&langId=-1
                                 java.lang.RuntimeException: java.io.FileNotFoundException: http://myserverhostname:80/search/resources/store/11451/categoryview/@top?catalogId=10401&depthAndLimit=11%2C11&responseFormat=json&responseFormat=json&langId=-1
	at com.ibm.commerce.foundation.internal.client.util.RESTHandler.execute(RESTHandler.java:122)
	...
	at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1656)
Caused by: java.io.FileNotFoundException: http://myserverhostname:80/search/resources/store/11451/categoryview/@top?catalogId=10401&depthAndLimit=11%2C11&responseFormat=json&responseFormat=json&langId=-1
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	...com.ibm.commerce.foundation.internal.client.util.RESTUtil.getWithMultiValuedParams(RESTUtil.java:172)
	at com.ibm.commerce.foundation.internal.client.util.RESTHandler.execute(RESTHandler.java:116)
	... 103 more
Caused by: java.io.FileNotFoundException: http://myserverhostname:80/search/resources/store/11451/categoryview/@top?catalogId=10401&depthAndLimit=11%2C11&responseFormat=json&responseFormat=json&langId=-1
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1457)
	at com.ibm.commerce.foundation.internal.client.util.RESTUtil.getWithMultiValuedParams(RESTUtil.java:136)
	... 104 more