I'm using the "Socialize" plug in for social sharing, and a few days ago the Facebook Like button on it stopped working. You can still press it, and it shows the counter go by "+1", but the actual post doesn't get shared on Facebook's Timeline of the respective person.
My latest post can be found here, Facebook Like is at the bottom along with Twitter/Google+1 buttons:
I'm using "Suffusion" theme, and it's been recently upgraded, so I've written on their support forums about the problem. Here's the answer I got:
"It is not a theme bug, is yours - check your site at validator.w3.org, you have 43 errors that mess up the mark-up of theme and also the mark-up needed by Open Graph Protocol for managing Like's..."
I can confirm that there are all sorts of validation errors, but I'm a complete newbie to HMTL, so I don't know how I should fix these.
Any tips will be GREATLY appreciated.