uguraccount Hi there,
Thanks a lot for writing. You've reached the forum for icon designers and this seems a question from the customer's side. I can respond here this time, but further questions have to be written to support@iconfinder.com.
About the MIT license, you can use the icon free of charge for commercial purposes, but you must include the license text on your website (https://opensource.org/licenses/MIT).
I hope this helps.
PS. Sorry about the late reply. Most of the team is on winter vacation.