Hi,
thank you for using MapStore. In order to get help, you may need to provide more information:
1) it is clear what you mean for MapStore FileWare... MapStore release? Which release?
2) how it doesn't work? What happens. Do you have any errors in logs (available in tomcat/logs )
Make sure to fill the requirements: 
In terms of java and tomcat version (I invite you to use latest stable version of tomcat too, I don't remember the specific versions but In the past we neededto update because of HTTPS certificates, if any is required). 
Recommended: 
- Java 11, tomcat  9.0.111
- Memory: 4 GB
- Postgres: 13