Oracle Database Free

I have the problem that I cannot log in to the Oracle web interface. I have created the user like this:

create user ich identified by 6699 default tablespace mein_tablespace;

I cannot log in under SYSTEM, SYS or "ICH". I try to log in under 127.0.0.1:5050.

I have set the port like this:

begin
dbms_xdb.setHTTPport('5050');
end;
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