This appears to be your problem... It looks to be part of a widget and is not immediately available as a clickable link on the page but appears in your page source and is crawlable.
ul><ul id="<a class="attribute-value">footer-col-4</a>" class="<a class="attribute-value">footer-col footer-non-spanning-col</a>"><li id="<a class="attribute-value">pp-custom-icon-14</a>" class="<a class="attribute-value">widget sc widget_pp-custom-icon</a>"><a id="<a class="attribute-value">pp-custom-icon-14</a>" href="[109,97,105,108,116,111,58,104,116,116,112,58,47,47,109,97,105,108,116,111,58,105,110,102,111,64,114,111,98,101,114,116,115,119,97,110,105,103,97,110,46,99,111,109](view-source:http://www.robertswanigan.com/happy-birthday-sara/109,97,105,108,116,111,58,104,116,116,112,58,47,47,109,97,105,108,116,111,58,105,110,102,111,64,114,111,98,101,114,116,115,119,97,110,105,103,97,110,46,99,111,109)" class="<a class="attribute-value">icon-link</a>"><span class="<a class="attribute-value">jsobf img</a>"><img src="[http://www.robertswanigan.com/wp-content/uploads/p4/images/widget_custom_image_1_1321921371.jpg](view-source:http://www.robertswanigan.com/wp-content/uploads/p4/images/widget_custom_image_1_1321921371.jpg)" class="<a class="attribute-value">pp-custom-icon</a>" width="<a class="attribute-value">170</a>" height="<a class="attribute-value">70</a>" />span>a>li>