Livewire 3 404 not found on every POST request

I've deployed a Laravel 11 and Livewire 3 app on shared hosting on a subdomain. Livewire 3 request are not working, when added the following the get request is working properly in route/web.php

Livewire::setScriptRoute(function ($handle) { return Route::get('/ijv/vendor/livewire/livewire.js', $handle); });

For post request when I add

Livewire::setUpdateRoute(function ($handle) {
return \Route::post('ijv/vendor/livewire/update', $handle); }

the route name conflict arises (livewire.update)

Unable to prepare route [ijv/vendor/livewire/update] for serialization. Another route has already been assigned name [livewire.update].

Have tried many things but not able to solve. Thanks