Problem when adding a user.

If I want to add a new user I get this message:

Unknown column 'token' in 'field list' - SQLSyntaxErrorException (... < QueryBuilder:472 < DatabaseStorage:89 < UserResource:101 < ...)

You're not using the right version of the web app.

is giving me the same error

The answer is the same. You're not using the matching version of the web app.

I have upgraded to version 5.3. The operating system is Ubuntu 22.04.1. And now I get the message 404 - not found.

You're probably doing something wrong, but without any details it's impossible to tell what exactly.

I have restored version 5.2 and the interface is available. I upgraded again to 5.3 and again no interface.

And again zero useful information. My guess is that you're not just using the standard setup. Do you have a custom or a proxy or something? If you want help, you have to provide as much details as possible.