Problem with sidebar

Hello People
Please help me
I have problem with sidebar please help me…


And i have a question,
I want to create multiple posts in the sidebar,can be done ??

Thank you very much
Thanks for your understanding.

I may not be able to tell why this error has occurred, but one thing that i can see is that in your sidebar’s icons list, it should be contact_mail instead of contact mail.

Again its not working …

I get the same thing, how can I solve it? I searched but I can not find any solution