seems to me fonts (as like fontawesome) are missing there. you have to check which font has used there and the font is working in your website.
You can get in touch with item author. How to contact an author to get support or for any technical query:
please im asking since 3 days and my work and lunching off I purchased the theme and I’m old client please fast solution
Please contact your purchased item author, they will assist you.
i didnt know how can i reach him ?
In my first reply I have given you help link: How to contact an author