When I upgraded my theme last, there were a few problem. Most of which I have managed to fix.
However one of them was that the widget in the footer (footer sidebar 4) shows “support” and other links and I can’t seem to delete the widget as it appears to not exist.
I already have that plugin installed. I just checked, there is no cache stored. I deleted cache anyways just in case something was amiss and still now change.
That’s weird. Please try adding a text widget to that widget area and see if that helps.
I believe when there’s no widget in the area, a default widget is added, so just try that and let me know what happens.