Side bar of setting page of AC5300 with the verison of 380.68

[frankZhuang]

I have just upgraded the firmware version from 380.67 to 380.68. However, when I opened the setting page, the side bar which should be full of tabs (Such as WIFI, System Utilities, and VPN tabs) disappeared. I have even rebooted, but that did not help with anything.
Wish someone could solve this problem cuz without side bar I can not access to other setting page except the home page. Thanks very much

 

[Makaveli]

Have you cleared your browser cache as noted in the firmware page for 380.68?

 

[frankZhuang]

or 380.68?

I ve just cleared cache and cookies on my chrome and I opened the setting page again, but the side bar is still missing.
I have tried the webpage on all my devices. Some of the devices have not logged into the setting page before. But even doing so, side bars are still missing

 

[frankZhuang]

This is how it looks like now

 

[RMerlin]

Open the browser console and look for any error message.