Inspecting the code on the page, all of our buttons are surrounded by a div that is changing the background-image with the following style:
<div class=" bd-imagescaling-img" style="background-image: url("/media/sourcecoast/images/provider/google/icon_label.png");">
However, this code is not coming from JFBConnect or SCLogin. Have you done a template override of our module files or do you have another extension on your page that would be adding this? You will need to investigate what is adding that class/style to the image, but once eliminated the proper buttons should display.
-Melissa