Welcome to the forum @action_awal13
Photos/screenshots of an error can be helpful, but it also helps to provide the complete code. Posting the code helps us help you better!
When you enter a code, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.
You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.
See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').
Also include a link to the challenge.
Happy coding