There's another community post with 404 debugging tips that might be helpful. Please give these solutions a try and let us know how it goes.

https://community.vercel.com/t/debugging-404-errors/437

A human should be around soon to offer more advice. But you can also get helpful information quickly by asking v0.

Its not a problem into my project or my code. The problem is the vercel dashboard.

Hi there,

Thanks for reaching out to Vercel Support, and I’m sorry for the inconvenience this error may have caused.

We experienced a brief degradation that has since self-resolved. Our engineering team is investigating the error that occurred and is conducting a retrospective to better understand the cause and prevent it from happening again.

Everything should now be operating normally. If you’re still seeing any errors or run into additional issues, please let me know—I’m happy to help.