My mobile menu just stopped working yesterday. This is a Multi-site install, and its only affecting one site. There has been no installs, no changes to the the site in a few weeks. There's no error reports, no logs to indicate any issues. How to fix a javascript or jQuery issue?
http://www.ironsightprecision.com/products/firing-pins/
The third error only shows after you try to open the mobile menu.
jQuery.noConflict()
is called somewhere. Have you tried cleaning your cache?