Difficulty installing my entire theme in WordPress

Hello to you.
I bought a theme today. But I have difficulty installing it. Can you help me solve this problem?
Thank you.
I am waiting for your answer.


How to Install Your ThemeForest WordPress Theme



Every item on Envato has included 6 months of support and you can contact the author if you have any problem with the item. Ask them via comments or the support desk ( If they have any ), they will definitely help you.


What is the actual problem? Missing stylesheet?