This bug shows up under the site maintenance page, but even more annoying is this same bug shows up on the "sign in" pop up.
When your smiley plugin is active we get error, when deactivated the error disappears.
Updated to the latest, cleared cache, tuned on site maintenance page and it is still there.
Deactivated app, problem is gone, uninstalled app bug is gone -- reinstalled app and "undefined" comes back on the Maintenance page only.
'undefined' is no longer on "sign in" popup (thumbs up), but it is still under the maintenance page when active.
For now I just pushed it off the page with a height rule.
Also disabled all other plug-ins except those that came with OW install -- no change. Also removed all additional CSS - just to make sure it wasn't any of my rules -- no change. Like I said before, pushed it off the page, but it BUGS me ;)
Let me know -- thank you for your efforts!