الدرس الثالث غير متوفر ارجاء حل المشكلة . وشكرا على الشرح في الدروس الاخراء

hey guys, I think the Lesson 3 of course " Skills in Powerpoint " is not available or has been deleted. so, If student try to get the certificate the system will rejects his request. so, how this issue can be resolved ?