JQuery停止工作，没有任何错误消息

I noticed on my website that jQuery stops working but I get no error on the console. I have been trying to test it with very basic code but still the jquery library is loading well, the javascript code works but not the jQuery. I tested it with Chrome and Internet Explorer on two different computers. Could someone point me to a direction to look for this problem please ?I noticed on my website that jQuery stops worki