If anyone is still using the Accessible News Ticker (ANT) plugin, it now dumps an error like this on the Dashboard (under Incoming Links and Plugins, and possibly elsewhere):
Fatal error: Please call SimplePie_Cache::create() instead of the constructor in /XXXXXXXXX/class-feed.php on line 13
The solution, based on this forum post, is simple: you just need to open accessible-news-ticker/ant.php, and on line 46 or so, where you have:
Comment it out and replace with:
Thanks to feedmeastraycat for the tip!