You can see in the attached screenshots it’s a 4 stage process, with stage 1 and 2 being assessments. The VSE is just one assessment from Stage 2. So unless you have passed the rest before there is still a lot of hoops to jump through after the VSE. Sorry to hear you failed, it was tough! I’m still waiting to hear.
It’s just the DB website you applied on. This should work
https://jobs.deutschebahngroup.careers/en_US/jobsGlobal/Login?3_388_3=124275&3_371_3=977502
Then when you go to your profile, it will have your applications and status of them at the bottom. But as has already been said I think email correspondence from them will be more up to date than this portal. So if you haven’t heard anything then I don’t think the portal will give much away. Best of luck if you’re waiting for results!