Problem when run the application on the web

Applications PROD environment
#1

I develop an application and run correctly when we start by use the internal LAN of the company or the IP address
When I use the adress name I receive the correct screen but when I begin to enter the password I receive an error of DOCTYPE

Some info :

The application in in a subfolder of another application who must run until the newest is release
The old php application in folder /var/www/myinput/
The scriptcase application is in /var/www/myinput/exelerp
The http address point to https://timesheet.nnnnnnn.com/ if I want use my new application I use https://timesheet.nnnnnnn.com/exelerp/app_Login/app_Login.php

See screenshot below for the error

If I use the IP like this http://192.168.10.27/myinput/exelerp/app_Login/app_Login.php in the internal LAN, It’s work fine

Thanks for your help

DOCTYPE error.jpg

#2

I have a feeling that things are mixed up? Not sure. I have configured a dtap street w.o. similar problems. But all environments have their own library and database setup. It might be worth a try:

mysite/dev
mysite/test
mysite/acc
mysite/prod