Error: md5sum: /usr/local/ispconfig/server/temp/.ispconfig_lock: No such file or directory

Hello,
I have been installing ISPconfig3 following tutorial:
https://www.howtoforge.com/perfect-server-debian-10-buster-apache-bind-dovecot-ispconfig-3-1/
At the end of the installation I got:
============================
......
Configuring DBServer
Installing ISPConfig crontab
Installing ISPConfig crontab
no crontab for root
no crontab for getmail
Detect IP addresses
Restarting services ...
md5sum: /usr/local/ispconfig/server/temp/.ispconfig_lock: No such file or directory
Installation completed.
root@srv01:/tmp/ispconfig3_install/install#
============================
Is it something I should worry about?
I followed all steps of the tutorial, no errors, no warnings except above message.
The installation was performed on a Debian 10, 64-bits virtual machine with 4 GB RAM, and enough disk space.

Any feedback will be appreciated.

Martin

 

Does your system work?
Try this first:
https://www.howtoforge.com/community/threads/please-read-before-posting.58408/