js/routing?callback=fos.Router.setData fails when upgrade pimcore

Hi All,

I did a pimcore upgrade from 6.4.2 to 6.8.4 today. In local, it seems to work fine but when I upgrade the server, t didn’t work. After the login screen, there was one API seems to fail which block to enter into pimcore.

js/routing?callback=fos.Router.setData ==> returns 500 instead of 200

How could I solve this?