The launcher's skin for the update notes Tumblr page has stopped working

the heart(see attachments) is displayed after I've clicked the heart button on a post

Below is the launcher output, not game output

[17:05:10 INFO]: Minecraft Launcher 1.6.61 (through bootstrap 100) started on windows...
[17:05:10 INFO]: Current time is Sep 18, 2016 5:05:10 PM
[17:05:10 INFO]: System.getProperty('os.name') == 'Windows 10'
[17:05:10 INFO]: System.getProperty('os.version') == '10.0'
[17:05:10 INFO]: System.getProperty('os.arch') == 'amd64'
[17:05:10 INFO]: System.getProperty('java.version') == '1.8.0_25'
[17:05:10 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[17:05:10 INFO]: System.getProperty('sun.arch.data.model') == '64'
[17:05:10 INFO]: proxy == DIRECT
[17:05:10 INFO]: JFX is already initialized
[17:05:10 INFO]: Refreshing local version list...
[17:05:10 INFO]: Refreshing remote version list...
[17:05:11 INFO]: Refresh complete.
[17:05:11 INFO]: Loaded 2 profile(s); selected 'asdfMineCart'
[17:05:11 INFO]: Refreshing auth...
[17:05:11 INFO]: Logging in with access token
[17:06:10 ERROR]: Failed to open link #
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_25]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_25]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
at com.mojang.launcher.OperatingSystem.openLink(OperatingSystem.java:66) [launcher.jar:1.6.61]
at net.minecraft.launcher.ui.tabs.website.JFXBrowser$1$1$1.handleEvent(JFXBrowser.java:73) [launcher.jar:1.6.61]
at com.sun.webkit.dom.EventListenerImpl.fwkHandleEvent(EventListenerImpl.java:129) [jfxrt.jar:?]
at com.sun.webkit.WebPage.twkProcessMouseEvent(Native Method) [jfxrt.jar:?]
at com.sun.webkit.WebPage.dispatchMouseEvent(WebPage.java:758) [jfxrt.jar:?]
at javafx.scene.web.WebView.processMouseEvent(WebView.java:1021) [jfxrt.jar:?]
at javafx.scene.web.WebView.lambda$registerEventHandlers$32(WebView.java:1144) [jfxrt.jar:?]
at javafx.scene.web.WebView$$Lambda$121/120702175.handle(Unknown Source) [jfxrt.jar:?]
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218) [jfxrt.jar:?]
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80) [jfxrt.jar:?]
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238) [jfxrt.jar:?]
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191) [jfxrt.jar:?]
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59) [jfxrt.jar:?]
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58) [jfxrt.jar:?]
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) [jfxrt.jar:?]
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) [jfxrt.jar:?]
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) [jfxrt.jar:?]
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56) [jfxrt.jar:?]
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114) [jfxrt.jar:?]
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74) [jfxrt.jar:?]
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54) [jfxrt.jar:?]
at javafx.event.Event.fireEvent(Event.java:198) [jfxrt.jar:?]
at javafx.scene.Scene$MouseHandler.process(Scene.java:3724) [jfxrt.jar:?]
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3452) [jfxrt.jar:?]
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1728) [jfxrt.jar:?]
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2461) [jfxrt.jar:?]
at com.sun.javafx.tk.quantum.EmbeddedScene.lambda$null$281(EmbeddedScene.java:250) [jfxrt.jar:?]
at com.sun.javafx.tk.quantum.EmbeddedScene$$Lambda$198/1517633310.run(Unknown Source) [jfxrt.jar:?]
at java.security.AccessController.doPrivileged(Native Method) [?:1.8.0_25]
at com.sun.javafx.tk.quantum.EmbeddedScene.lambda$mouseEvent$282(EmbeddedScene.java:238) [jfxrt.jar:?]
at com.sun.javafx.tk.quantum.EmbeddedScene$$Lambda$197/1898906602.run(Unknown Source) [jfxrt.jar:?]
at com.sun.javafx.application.PlatformImpl.lambda$null$164(PlatformImpl.java:292) [jfxrt.jar:?]
at com.sun.javafx.application.PlatformImpl$$Lambda$62/1933907100.run(Unknown Source) [jfxrt.jar:?]
at java.security.AccessController.doPrivileged(Native Method) [?:1.8.0_25]
at com.sun.javafx.application.PlatformImpl.lambda$runLater$165(PlatformImpl.java:291) [jfxrt.jar:?]
at com.sun.javafx.application.PlatformImpl$$Lambda$61/2131952342.run(Unknown Source) [jfxrt.jar:?]
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) [jfxrt.jar:?]
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) [jfxrt.jar:?]
at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102) [jfxrt.jar:?]
at com.sun.glass.ui.win.WinApplication$$Lambda$53/260840925.run(Unknown Source) [jfxrt.jar:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.io.IOException: Failed to open #. Error message: The system cannot find the file specified.

at sun.awt.windows.WDesktopPeer.ShellExecute(WDesktopPeer.java:90) ~[?:1.8.0_25]
at sun.awt.windows.WDesktopPeer.browse(WDesktopPeer.java:76) ~[?:1.8.0_25]
at java.awt.Desktop.browse(Desktop.java:386) ~[?:1.8.0_25]
... 45 more