Error page when trying to update Nuxeo Studio from admin center

Caused by: java.lang.NullPointerException
	at org.nuxeo.connect.client.jsf.AppCenterViewsManager.getLastUpdateDate(AppCenterViewsManager.java:288)
	at org.nuxeo.connect.client.jsf.AppCenterViewsManager.getStudioInstallationStatus(AppCenterViewsManager.java:344)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
	at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
	at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:68)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.nuxeo.ecm.platform.ui.web.util.NuxeoExceptionInterceptor.aroundInvoke(NuxeoExceptionInterceptor.java:79)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
	at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
	at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
	at org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166)
	at org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102)
	at org.nuxeo.connect.client.jsf.AppCenterViewsManager_$$_javassist_77.getStudioInstallationStatus(AppCenterViewsManager_$$_javassist_77.java)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:329)
	at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:274)
	at org.jboss.el.parser.AstMethodSuffix.getValue(AstMethodSuffix.java:59)
	at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
	at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
	at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)