Is there anyway to fix this on my own?

Hello, my carpet is pulled and torn up in my doorway. Is there any possibility I could fix this on my own or do I need to call someone out to fix this? If it looks fixable, what would I need to fix it? Thank you!

Hello, my carpet is pulled and torn up in my doorway. Is there any possibility I could fix this on my own or do I need to call someone out to fix this? If it looks fixable, what would I need to fix it? Thank you!