Hi jacquesh, thanks for your reply.
I have checked :
In /usr/share/ocsinventory-reports/ocsreports/files/update I found there are 7015 - 7022.sql created on 18 Jan 2021
I looked at table 'config' search for 'name=GUI_VERSION'
GUI_VERSION 7022 Version of the installed GUI and database
I looked at /usr/local/share/perl5/Apache/Ocsinventory.pm
$Apache::Ocsinventory::VERSION = '2.9.2';
Updated: On 18 Jan 2022 I tried to upgrade ocs server from 2.6 to 2.9.2 (I'm sorry , my fault) , I follow instruction at :
https://wiki.ocsinventory-ng.org/03.Basic-documentation/Updating-the-server/
I backup /usr/share/ocsinventory-reports/ocsreports , Apache configs, and ocsweb database , then
I download OCSNG_UNIX_SERVER-2.9.2.tar.gz , unzip , and run setup.sh
But it failed, I cannot access to ocs report page (blank page), so I restore back 2.6 source but I forgot about perl script version.
I haven't checked agent working until now.
So I fixed it by downgrade ocs server perl script back to 2.6 (reinstall ocs 2.6)
Can you give me some hint about upgrade ocs server to 2.9.2 lead to blank page case ?
Maybe because ocs server 2.9.2 require PHP 7 ?