Cannot create session id.

Session Log

session constructor v0.55 called. $initSession: no
function read_config(): cfg is

Array
(
    [session] => 
    [sid_strlength] => 32
    [sid_readvars] => PGC
    [session_lifetime] => 10800
    [session_cookie_secure] => 1
    [session_cookie_http] => 1
    [useragent] => 0
    [ip] => 1
    [hold_old_sessions] => 0
    [proc_expiredSession] => 1
    [autologin_remote_user] => 
    [domain] => https://www.alpenhof-toelz.de
    [web_path] => /
    [admindomain] => https://www.alpenhof-toelz.de
    [admin_web_path] => /cms/admin/
    [page_admin_login] => logon.php
    [domain_cookie] => .alpenhof-toelz.de
    [block_user] => 
)

Not yet calling start_session from __construct()
function start_session()
using GET sessid
As well means the user SHOULD have the cookie set from the page he's coming from.
function session_required()... $this->adminArea: N
session required.
found an existing session id: 6f163e88e625f917d1240f39cbfb9768
function check_session() for sessid 6f163e88e625f917d1240f39cbfb9768
Session is NOT VALID (no session in db found, session expired) - has expired!
function session_expired(). Deleting all sessid cookies...
cfg: proc_expiredSession = 1
Session has expired but staying in page...