OCS Agent dosent send logs

Starting OCS Inventory NG Agent on Tuesday, January 16, 2018 17:24:43.
AGENT => Running OCS Inventory NG Agent Version 2.1.1.1
AGENT => Using OCS Inventory NG FrameWork Version 2.1.1.1
AGENT => Loading plug-in(s)
AGENT => Using network connection with Communication Server
AGENT => Using Communication Provider <OCS Inventory NG cURL Communication Provider> Version <2.1.1.1>
AGENT => Sending Prolog
ERROR *** AGENT => Failed to send Prolog <Problem with the SSL CA cert (path? access rights?)>
AGENT => Unloading communication provider
AGENT => Unloading plug-in(s)
AGENT => Execution duration: 00:00:01.