Something went wrong with my status bar

[ghost]

**Environment **

• Nvim: 0.7.2
• OS : windows 11
• What is your airline configuration: using evil_lualine

I tried to custom my status bar but i don't know why it went wrong with the icons and the shape of the sections holds its component.
My status bar:

It's supposed to be like this:
**
Another example from vim-airline

[fitrh]

As the README state

You'll also need to have a patched font if you want icons.

So you may need to install a nerd font and set it as your terminal emulator font