New 2.7.2 installation

UPDATE: Reproduced this again this morning.

After session sitting dormant for a while, clicking on the Site Administration link received the following error. I refreshed page and then tried and it worked correctly.

@http://ccpetest.kennesaw.edu/courses/theme/yui_combo.php?rollup/3.15.0_1/yui-moodlesimple.js&rollup/1414420173/mcore-debug.js:24354:25
ln: 17
http://ccpetest.kennesaw.edu/courses/theme/yui_com
BRANCH.prototype.ajaxProcessResponse
ln: 21
http://ccpetest.kennesaw.edu/courses/theme/yui_com
Y.Subscriber.prototype._notify
ln: 13
http://ccpetest.kennesaw.edu/courses/theme/yui_com
Y.Subscriber.prototype.notify
ln: 9
http://ccpetest.kennesaw.edu/courses/theme/yui_com
Y.CustomEvent.prototype._notify
ln: 1
http://ccpetest.kennesaw.edu/courses/theme/yui_com
Y.CustomEvent.prototype._procSubs
ln: 13
http://ccpetest.kennesaw.edu/courses/theme/yui_com
Y.CustomEvent.prototype.fireSimple
ln: 17
http://ccpetest.kennesaw.edu/courses/theme/yui_com
Y.CustomEvent.prototype._fire
ln: 13
http://ccpetest.kennesaw.edu/courses/theme/yui_com
ET.prototype.fire
ln: 13
http://ccpetest.kennesaw.edu/courses/theme/yui_com
IO.prototype._evt
ln: 9
http://ccpetest.kennesaw.edu/courses/theme/yui_com
IO.prototype.complete
ln: 17
http://ccpetest.kennesaw.edu/courses/theme/yui_com
IO.prototype._rS/<