Whenever I want to create a new project or edit an existing one the preview starts an infinite loading and appears a “Forbidden” error. I tried everything, from cleaning the cache of the browser to try with another browser and even testing other accounts and still the same. I don’t know why tihs hap…

There’s nothing you need to do to avoid this in the future. It was a one-time issue that’s completely fixed at this point! :grin:

Please, admins or someone from Vercel watch this. I need to get this thing fixed. Why are you not responding to this?

A few questions to help me decide what area to investigate: Does it happen on every new chat, or only on a specific project? Have you tried a different browser or device? Do you see any error details in the browser console?

1.- Happen on every new chat or forked project. 2.- I tried a different browser and device with the same result. Even my boss with his account tried and nothing happened. 3.- I’ve just checked the browser console and this error appears: [image]

Can you give it another try and let me know how it goes? It should work for you now

Yes, Thank you so much. Now, can you please tell me: 1.- Why this happened? 2.- What can I do to avoid this error in the future?

I need help again, now I’m having another issue. I got the error: “Blocked request. This host (“xx-xxxxxxxxxxx.vercel.run”) is not allowed. To allow this host, add “xx-xxxxxxxxxx.vercel.run” to `server.allowedHosts` in vite.config.js.”. I need help, because V0 is still using tokens and I didn’t a…

Replied to your other thread [image] Blocked request. This host xxxxxxxxxxxxxxxxx is not allowed. Discussions That sounds like some form of auth within your app is blocking v0. Does the project work from a preview deployment?

Not able to create nor update a project

amyegan (Amy Egan) June 16, 2026, 10:00pm 10

Replied to your other thread

Topic		Replies	Views
Blocked request. This host xxxxxxxxxxxxxxxxx is not allowed. Discussions	2	359	June 18, 2026
Deployment thumbnail shows "Error: Forbidden (403)" — live site works fine Help	74	687	May 25, 2026
v0 project modification fails with vercel.com refused to connect error Help v0 , v0-ui	5	151	March 5, 2026
I can't create any new project it says failed to create project Help	2	74	August 26, 2025
Error in my projects Help	2	67	December 10, 2024

Not able to create nor update a project

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