I had been using 1.8.3b6, but when I updated to 1.8.3 this morning, my FeedBurner widget stopped working.
The error is: Error parsing data for feed. Fetched data was ‘’
Is it possible something failed to fully update? I had attempted to do an auto-update by setting my Piwik folder to 777 as stated in the instructions, but Hostgator started throwing Internal Configuration errors (Server error 500) until I changed the folder back to 755, and I did a manual update instead.
For me, everything seems to be working save this.