[otrs] Crontab again

Hi all, Because the crontab problem I had is not still resolved, I have tried to uninstall and to reinstall the crontab for the user otrs. So, as otrs user (su - otrs) I have checked to have an empty crontab in order to reinstall the cron. After that I have launched: ./Cron.sh start from /opt/otrs/bin I have this message: /opt/ptrs/var/tmp/otrs-crpn-tmp.4284: No such file or directory failed Can anyone help me with this error message? Thank you. Alina.