You are trying to run a standalone inventory on some of your endpoint machines. However, some of those machines failed to send the collected inventory to the SMP Server.
The error during standalone inventory execution, according to the agent logs, is this one:
<event date='01/27/2023 12:02:14.5250000 +01:00' severity='1' hostName='CLIENT' source='Inventory::Run' module='InvAgent.dll' process='x64_InvSoln.exe' pid='3580' thread='3564' tickCount='79733327' >
<![CDATA[Posting failed, error: No such host is known (0x80072AF9)]]>
</event>
ITMS 8.x, 8.7.x
No such host is known means client is unable to resolve server IP address.
Fix DNS or add corresponding IP address into hosts file on the affected endpoint machine.