Stuck at the 4-3 branch: navigateTo problem

[ShamashMeYeshua]

Hello friends,

I am using the last version of Nuxt (4.4.4) to follow along the course, but I am stuck at the branch with a weird behavior.
When I click at the New Chat button at the AppHeader, the runs but crashes afterwards, and I have tryed a lot of different approaches to understand the problem, but even with AI support is very hard.

I am using this configuration settings, which is different of the course.

`// https://nuxt.com/docs/api/configuration/nuxt-config
export default defineNuxtConfig({
compatibilityDate: '2025-07-15',
devtools: { enabled: true },
modules: ['@nuxt/ui', '@nuxt/eslint', '@nuxtjs/mdc'],
css: ['~/assets/css/main.css'],
runtimeConfig: {
openApiKey: 'http://localhost:3000',
public: {
nested: 'This is a nested public config value'
}
},
vite: {
optimizeDeps: {
include: ['debug',
'@vue/devtools-core',
'@vue/devtools-kit',
],

}

},
mdc: {
highlight: {
theme: 'material-theme-palenight',
langs: ['javascript', 'typescript', 'vue', 'html', 'css', 'json', 'bash', 'python', 'java', 'csharp', 'markdown']
}
}
})`

Would anyone be able to guide me the best solution here, or should I use the same version of the course?