I did the setup for the web server with amazon hosting. When i try to register it shows me a error.

It states registration disabled. That is what you can do when you (or someone else) already registered an admin account.

I understand but i did not register a acount. The solution would be to restart all the server and database?

since its your server you should have acces to it. So you should be able to see traccar server log and check it first.

But if you just installed it and it directly did not allow registering the easier way would be to just remove and reinstall it.

did every step i did last time, and it said: new acount registered or something like that. So it basically worked, but now i get a error when trying to log in. It says that password and username is not ok. Do you know where i can see the data of the acounts registered? or any log of my server? I am using this amazon service for my server.