Glad to hear the Fatal error was fixed by upgrading EasySocial. Not sure what was going on there, but happy it's resolved
As for Autotune, the 'problem' is with JCH Optimize. It's sucking in some of the code we're looking for on the page to verify everything we insert on the page is properly there. Because it's missing, Autotune fails. I just checked and everything looks right.. the code has just been absorbed into their compressed Javascript file.
So, for now, I'd recommend ignoring that Autotune error. We're in the process of overhauling the Autotune functionality for the 6.1 release, and the checks we're performing will be improved as well.
I hope that helps, but if your concerned about anything or, of course, run into any functional issues, we'll gladly help investigate more.
Thanks,
Alex