Quit the install process, cannot uninstall

Hello,

I quit the ISPConfig install process and now none of the install/uninstall/update.php files are usable.
"install.php" sees an installed ISPConfig and wants me to use update.php.
"update.php" shows these errors:

Code:

Operating System: Debian 9.0 (Stretch) or compatible

PHP Warning:  include_once(/usr/local/ispconfig/server/lib/config.inc.php): failed to open stream: No such file or directory in /tmp/ispconfig3_install/install/update.php on line 107
PHP Warning:  include_once(): Failed opening '/usr/local/ispconfig/server/lib/config.inc.php' for inclusion (include_path='.:/usr/share/php') in /tmp/ispconfig3_install/install/update.php on line 107
PHP Notice:  Undefined variable: conf in /tmp/ispconfig3_install/install/update.php on line 108
Unable to resolve hostname

And "uninstall.php" shows these errors:

Code:

PHP Warning:  require_once(/usr/local/ispconfig/server/lib/config.inc.php): failed to open stream: No such file or directory in /tmp/ispconfig3_install/install/uninstall.php on line 37
PHP Fatal error:  require_once(): Failed opening required '/usr/local/ispconfig/server/lib/config.inc.php' (include_path='.:/usr/share/php') in /tmp/ispconfig3_install/install/uninstall.php on line 37

Is it possible to recreate/rebuild those missing files just for the sake of uninstalling and installing ISPConfig again?
I don't have any data that needs to be worried about.

Thank you in advance

 

Well thank you very much for that quick reply. The install process starts now!

 

Now ISPConfig is running, but is very slow, the web view is missing some html elements and links do not function. For example if I manage to go to clients, the loading spinner never stops.
ispconfig.log is empty

https://www.howtoforge.com/community/threads/ispconfig-viewing-probelms.534/
this folder "admispconfig" does not exist

Update:
I completely had to restart the server and now I get a response from ISPConfig. I think some php stuff went rogue.

Update2:
Nope, it is definately lagging hard again.
Found this in the Apache error.log hundreds of times:

Code:

AH00106: piped log program ' /usr/local/ispconfig/server/scripts/vlogger -s access.log -t "%Y%m%d-access.log" /var/log/ispconfig/httpd' failed unexpectedly
[vlogger] target directory /var/log/ispconfig/httpd does not exist or is a symlink - exiting.

 

Thank you for your tipps but in the end I uninstalled everything, deleted relevant folders & config files manually and hope that I got them all...