connection failed: FATAL: database "33357" does not exist Multiple connection attempts failed.

Hi,

on Debian 13 I have installed pgAdmin4-Web version 9.10

I am using Firefox web browser to reach pgAdmin4's
http://127.0.0.1/pgadmin4/ local site.

I can login to the postgreSQL 17 local server on this computer with user
postgres and user 'pali' too by using commandline shell: a term window.

Using pgAdmin4's Object Explorer I can connect to this postgreSQL server
with username postgres but can not login neither as postgres nor 'pali'
using Query Tool Workspace.
I get the following error message:

connection failed: connection to server at "127.0.0.1", port 5432 failed:
FATAL: database "33357" does not exist Multiple connection attempts failed.
All failures were: - host: 'localhost', port: '5432', hostaddr: '::1':
connection failed: connection to server at "::1", port 5432 failed: FATAL:
database "33357" does not exist - host: 'localhost', port: '5432',
hostaddr: '127.0.0.1': connection failed: connection to server at
"127.0.0.1", port 5432 failed: FATAL: database "33357" does not exist

How can I solve this issue?
Any advices will be appreciated!

--
Best,
Csányi Pál