Server cron does not executes curl commands

Hi mate, wonderful job you did with this plugin hats down. Everything works more or less as expected. However there is problem with Server cron jobs where certain calls just stopped executing. Background of problem: So i have set curl commands to call https addressees if you familiar with Wp all Import scheduling tasks (https://www.wpallimport.com/documentation/cron/) that should reach and trigger wp-load.php placed in public_html/ everything worked without problem and still works when hide my wp plugin is disabled, but when its ON cron just reports 500 internal server error i tried to trigger curl from terminal, same problem. The odd thing is, when those addressees are triggered directly from browser they do what they supposed to do, trigger feed import. I tried to set entire request header (i found from incognito window where address is triggered manually with success 200 OK) curl -v -H ‘****’ https:// ****** with calling syntax, but still getting error while addon is ON. When i switch OFF plugin, everything works fine. I whitelisted Server IP and hostinger host ip.

Any ideas what can cause that behavior?

Best regards ,Stevan