a couple of weeks ago I saw that I still had the contents of the installer subdirectory active, and I disabled them. Today when trying to access admin control panel, I got the error message
Fatal error: Class 'Installer' not found in /homepages/41/userno/htdocs/agim/tiki-18.3/tiki-admin.php on line 690
Obviously that is related to my disabling the subdir. Looks like tiki-admin.php does include things from the installer subdirectory. Does this mean I have to restore the entirety of that subdirectory, or can I leave thins out for security concerns?