This is line 19 of the ta.library.js as @KELSIER pointed to.
var ta_c=document.createElement("a");ta_c.innerHTML="|Theme by Taman",ta_c.setAttribute("href","https://invisionpower.com/profile/537452-taman/"),ta_c.setAttribute("title","Behemoth Theme"),ta_c.setAttribute("id","taCopyright"),ta_c.setAttribute("style","display:inline !important"),null!==document.querySelector("#elCopyright")?document.getElementById("elCopyright").appendChild(ta_c):document.getElementById("ipsLayout_footer").appendChild(ta_c);
Regards
Caleeco