Adding Apache error log:

[Fri Jul 26 13:20:02.492285 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: simplexml_load_file(): I/O warning : failed to load external entity "file:/C:/xampp/htdocs/administrator/manifests/libraries/fof.xml" in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Installer.php on line 2070, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:02.493285 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: Trying to access array offset on value of type bool in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Adapter\\LibraryAdapter.php on line 495, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:03.476972 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: simplexml_load_file(): I/O warning : failed to load external entity "file:/C:/xampp/htdocs/plugins/content/geshi/geshi.xml" in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Installer.php on line 2070, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:03.476972 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: Trying to access array offset on value of type bool in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Adapter\\PluginAdapter.php on line 617, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:04.297712 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: simplexml_load_file(): I/O warning : failed to load external entity "file:/C:/xampp/htdocs/plugins/twofactorauth/totp/totp.xml" in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Installer.php on line 2070, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:04.298711 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: Trying to access array offset on value of type bool in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Adapter\\PluginAdapter.php on line 617, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:04.348696 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: simplexml_load_file(): I/O warning : failed to load external entity "file:/C:/xampp/htdocs/plugins/twofactorauth/yubikey/yubikey.xml" in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Installer.php on line 2070, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:04.348696 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: Trying to access array offset on value of type bool in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Adapter\\PluginAdapter.php on line 617, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:05.368370 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: simplexml_load_file(): I/O warning : failed to load external entity "file:/C:/xampp/htdocs/administrator/manifests/packages/pkg_joomla.xml" in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Installer.php on line 2070, referer: http://localhost/installation/index.php
[Fri Jul 26 13:20:05.368370 2024] [php:warn] [pid 9756:tid 1836] [client ::1:57536] PHP Warning: Trying to access array offset on value of type bool in C:\\xampp\\htdocs\\libraries\\src\\Installer\\Adapter\\PackageAdapter.php on line 713, referer: http://localhost/installation/index.php

While I wait your answer, I looked and the 5 files are missing also from the installation package:

C:/xampp/htdocs/administrator/manifests/libraries/fof.xml
C:/xampp/htdocs/plugins/content/geshi/geshi.xml
C:/xampp/htdocs/plugins/twofactorauth/totp/totp.xml
C:/xampp/htdocs/plugins/twofactorauth/yubikey/yubikey.xml
C:/xampp/htdocs/administrator/manifests/packages/pkg_joomla.xml

Hello

All entries in your database appear to be backups. Have you any tables starting with the prefix rather than bak_?

Ciaran

I have to apologize for making a mess.

Managed to install in a live environment under subdirectory, XAMPP didnt work out.
Alas, on a live environment, while makign sure all files uploaded, some files were autimatically deleted by host, had to reupload a few files and then got it to work.

Thank you
and best regards