Contrib Module JavaScript interfering with Node
That seems to be a common issue with the sharebar module.  The 7.x-2.x-dev version moves the sharebar into a block so that you can place it anywhere with either the block ui or the context ui.

The 7.x-2.x version is still in dev so you may need to do a little testing before enabling it on production, however, the module maintainer is suggesting that people upgrade to this version anyway.