Hello,
I just installed itflow today by following the manual install instructions and after enabling cron and returning to the webpage I saw a notification and clicked the bell to see "cron successfully executed" however when I click on the notification it takes me to a page that doesn't exist (admin_logs.php).
I checked the git repo, and admin_logs.php does not appear to exist in the master branch.
I was able to find it in the whitelable branch and copied it from there to my server manually and that seems to have resolved the issue. It looks like admin_logs.php may need to be added back to the master branch.