Login UI issue in production

After login page hangs here.

Have you changed the port to port 80? On production it is normally port 8000, but your URL suggests no port, which goes to the default of port 80. This would be fine if you specifically set it up that way, but since it isn’t working, it suggests that something went wrong on the install.
Normally an update would help/fix that.

cd ~/frappe-bench;
bench update