ispconfig report wrong web traffic (this month is identical to last month)

Summary

In the "web traffic" view the column "This month" is exactly the same as "Last month" for every website

Correct behaviour

The two columns are more or less different due to non-constant traffic

Environment

Server OS + version: Debian 12
ISPConfig version: 3.2.11p2
Software version of the related software:

# apache2 -v
Server version: Apache/2.4.59 (Debian)
# php -v
PHP 8.2.20 (cli) (built: Jun  6 2024 16:26:19)
# php-cgi -v
PHP 8.2.20 (cgi-fcgi) (built: Jun  6 2024 16:26:19)

Screenshots