systemctl cannot access service file, Permission denied

On Fedora 35, I create my own service to schedule a backup. I have the script in /usr/local/bin/ and service files plus timer in /lib/systemd/system/ ls -an /usr/local/bin/ prints -rwxr--r--. 1 0 0 3360 Dec 1 18:31 backup.sh ls -an /lib/systemd/system/schedule-backup_root* -rw-r--r--. 1 0 0 230 Dec 1 18:14 /lib/systemd/system/schedule-backup_root.service -rw-r--r--. 1 0 0 388 Dec 1 16:49 /lib/systemd/system/schedule-backup_root.timer but then when I start the service systemctl start schedule-backup_root.service Dec 01 18:36:13 fallen-robot systemd: Started Nightly snapshot backup job for ROOT volume. Dec 01 18:36:13 fallen-robot systemd: schedule-backup_root.service: Failed to locate executable /usr/local/bin/backup.sh: Permission denied Dec 01 18:36:13 fallen-robot systemd: schedule-backup_root.service: Failed at step EXEC spawning /usr/local/bin/backup.sh: Permission denied Dec 01 18:36:13 fallen-robot systemd: schedule-backup_root.service: Main process exited, code=exited, status=203/EXEC Dec 01 18:36:13 fallen-robot systemd: schedule-backup_root.service: Failed with result 'exit-code'. My service file looks like this: [Unit] Description=Nightly snapshot backup job for ROOT volume [Service] Type=simple ExecStart=/usr/local/bin/backup.sh -s / -b /run/media/borko/BackupTest/ -t "Fallen Robot ROOT Backup Report" [Install] WantedBy=default.target Why it cannot access the file?