[Bug]: 500 Internal Server Error on domain where Nextjs project was "successfully" deployed to

### Problem description

The deployment went ok with Github Actions, but the URL where it is deployed instantly gives a blank page with 500 Internal Server Error.
The Deno logs do show:
```
TypeError: Cannot read properties of undefined (reading 'clientModules') at eventLoopTick
```
but I don't get this locally, where everything works fine, both in dev, as well as with `next build`.

It is hard to debug this, since Deno does not provide much further info to go on.

The public repo is [here](https://github.com/davidde/ethblox).

### Steps to reproduce

1. git clone https://github.com/davidde/ethblox
2. Deploy to deno with automated setup process.
3. Browse to deployed project and see 500 Internal Server Error.

### Expected behavior

I expect to see the same I see in local builds, i.e. a functional website.

### Environment

_No response_

### Possible solution

_No response_

### Additional context

_No response_

Clone the linked ethblox repository, inspect its GitHub Actions automated deployment setup, and compare the local `next build` result with the deployed Deno runtime. Use the reported Deno `clientModules` error and deployed URL as the starting checks; done means the deployed site loads successfully instead of returning HTTP 500.

Written by the indexing model from the issue text.