Ubuntu Tomcat help

I had a Java application deployed (setup by someone else) and I’ve been going through the process of improving it myself (read. breaking it). I need some help please

I appear to have HTTPS working ok and have now got Tomcat working, except it only shows a blank page when you go to the URL. When you inspect the page it shows a raft of 404 errors where it doesn’t seem to be able to find the .jps files. This makes me think a path is incorrectly set somewhere or a permissions issue?

TBH the whole file structure in this directory is confusing to me, there seems to be multiple versions of the same files all over the place.

File structure:

Root. 1. bin

1. DATA
2. Projects
3. Tomcat
4. admin (admin console - used to be accessed using URL/site-admin 1.apache-tomcat-8.5.29
5. bin
6. conf
7. lib
8. logs
9. webapps 1. ROOT
10. SITE
11. SITE-WEB*
12. SITE-Admin*
13. back-end (this has the .WAR file in it)
14. frount-end (presume spelling mistake) - (this seems to mimic the content of both the webapps/site-web directory and webapps/ROOT) 2. etc = apache2
15. var
16. usr

The tomcat log seems to be clear and running ok.

Help would be greatly appreciated and can post additional info if required.

thanks

Colonel Yeehaw