Alc is now back up and running (v 2.0). Force update by either restarting Chrome or going to Extension and toggle on Developer mode at the top right, and then click "Update extensions now", or just wait and it should update automatically, though it can take a little while.
And just a note (which I also posted on the extension description):
Since Jagex decided to split up the alog on multiple pages, the extension basically has to do one extra request per piece of content (one for your recent events, one for your friends' events, one for your quests etc.) This might cause a slight delay before the content is shown on the page, depending on how fast the server responds.
27-Oct-2014 00:28:15