When running Google measurement tools and running Developer console in Chrome, it picked up a javascript error -- when I dig further it seems this line is the error in js>script.js line 29 --- $('*[rel=tooltip]').tooltip()

Here's the error
scripts.js:29 Uncaught TypeError: $(...).tooltip is not a function
at HTMLDocument.<anonymous> (scripts.js:29)
at u (jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2)
at Object.fireWith [as resolveWith] (jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2)
at Function.ready (jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2)
at HTMLDocument._ (jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2)
(anonymous) @ scripts.js:29
u @ jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2
fireWith @ jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2
ready @ jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2
_ @ jquery.min.js?d5aec7f85606386d9b14d50ebea74268:2