sh-3.2# su bilmax21
sh-3.2$ crontab -l >1

Permission denied
You (bilmax21) are not allowed to access to (crontab) because of pam configuration.
sh-3.2$ id
uid=272(bilmax21) gid=101(catcom) groups=101(catcom),613941761(domain^users),613942435(gg-internet-access),613943227(dl-project-common-r),613943232(gg-project-common-r-users),613946980(gg-techone-financials-users),613947438(gg-telmax-users),613951474(gg-wireless-mdm),613956381(gg-vrt-evsearch),613960849(rg-o365-netskope-users)

in /var/log/cron

Sep 26 20:50:01 s-vm-telmax01 crond[30456]: Permission denied
Sep 26 20:50:01 s-vm-telmax01 crond[30456]: CRON (bilmax21) ERROR: failed to open PAM security session: Success
Sep 26 20:50:01 s-vm-telmax01 crond[30456]: CRON (bilmax21) ERROR: cannot set security context