Hello Zafer,

Can you try use wget directly without bin in front. For example, try using this cron command:

wget -O /dev/null "http://mysite.com/index.php?option=com_easysocial&cron=true" >/dev/null 2>&1

Please give this a try and see if this resolves your issue. If it doesn't, perhaps you can provide us with backend access and CPanel access so that we can debug/assist you on this issue much better. Please put it in the Site Details below.

Please advise.
Thanks.