ERROR 500 while using OCS Inventory Agent for win

Hi,

I'm having this error and i couldn't figure out what is happening. Can somebody helop me.

Error message :

Starting OCS Inventory Agent on Tuesday, June 23, 2020 19:13:15.
AGENT => Running OCS Inventory Agent Version 2.7.0.0
AGENT => Using OCS Inventory FrameWork Version 2.7.0.0
AGENT => Loading plug-in(s)
    DLL PLUGIN => Searching for Plug-in DLL(s) in folder <C:\Program Files\OCS Inventory Agent\plugins>
    DLL PLUGIN => 0 DLL Plug-in(s) successfully loaded on 0 DLL(s) found
AGENT => Using network connection with Communication Server
    COM PROVIDER => Loading Communication Provider <C:\Program Files\OCS Inventory Agent\ComHTTP.dll>
AGENT => Using Communication Provider <OCS Inventory cURL Communication Provider> Version <2.7.0.0>
AGENT => Sending Prolog
    DID_CHECK => Read DeviceID <DESKTOP-IGQGU9M-2020-06-23-18-46-11> and MACs <C8:5B:76:D5:9B:4500:09:0F:FE:00:0100:09:0F:AA:00:01E4:B3:18:94:33:D7> in file <ocsinventory.dat>
    COM SERVER => Initializing cURL library for sendRequest
    COM SERVER => Using cURL without server authentication
    COM SERVER => Disabling cURL proxy support
    COM SERVER => Disabling cURL SSL server validation support
    COM SERVER => Sending HTTP Post request to URL <http://10.70.40.12/ocsinventory>
    COM SERVER => HTTP Post response received <HTTP Status Code #500>
    COM SERVER => Cleaning cURL library
ERROR *** AGENT => Failed to send Prolog <HTTP Status Code #500>
AGENT => Unloading communication provider
AGENT => Unloading plug-in(s)
AGENT => Execution duration: 00:00:00.

I followed the instruction via this link but still not working.

http://ask.ocsinventory-ng.org/3958/error-agent-failed-to-send-inventory-http-status-code-%23500