Like many of you, I found the conflict with the Sharebar plugin showing up in aspects of Gravity Forms. I like Sharebar more than any other social-sharing plugin I've tried, so I wasn't satisfied to just disable it.
The solution was quite simple!
Find:
return jQuery(sharebar).offset().top;
Add the following line above it:
if(jQuery(sharebar).offset() != null)
Credit for this fix goes to Ken.ph on the WordPress forum.
