I am trying to install Opensis-ce 6.0 on Ubuntu 18.04. I followed the the procedure given by CAMAPP

Steps 1 to 12 were executed successfully However when i executed step 13 i got the following message:

"Object not found! The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again.

If you think this is a server error, please contact the webmaster. The requested URL was not found on this server. If you entered the URL manually please check your spelling and try again".

"If you think this is a server error, please contact the webmaster".

Error 404 localhost Apache/2.4.37 (Unix) OpenSSL/1.0.2q PHP/7.2.13 mod_perl/2.0.8-dev Perl/v5.16.3

Before executing step 13 I verified the following MySQL Database Running ProFTPD Running Apache Web Server Running

I also verified that Xampp was setup correctly. by typing in the address bar. when i did that and pressed enter, The Xampp home page came up. i used Opera browser

Xampps WElcome Page

I also verified phpMyAdmin was installed correctly by typing http://localhost/phpmyadmin in the address bar and pressing enter when i did the expected page appeared

phpmyadmin opening page

i made a further observation. Using the Xampp 7.2.13-0 Graphical server manager tool. When i click on "go to applications" i get the following error message in the terminal window:

xdg-open: no method available for opening 'http://localhost:80'

I would like to know what to do to complete the installation of Opensis-ce Thanks much

Note: i also tried using localhost port 81 and 82 instead of port 80 as some suggested without any success