Nothing works on Terminal when I follow along

I finished the HTML+CSS and JavaScript courses, and in both, when I followed along on the Terminal, it never worked, I received so many error messages (nothing like what was showing on the lesson), even though I triple-checked spelling many times.

I’m on macOS Sonoma 14.5, and always installed the same version as Mosh.

Show the errors and what you typed in, screenshots are nice, but copy paste okay

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