Missing param for for named route after successful api call - laravel

Question

I have a Settings component where a user can update their informations, after the update is successful I get in the console missing param for named route and all the inputs that should contain user data are empty, and when I try accessing the settings page it redirects to the home page even though all the data needed for it to work is still in the component's data.
This is the component's method to that commits an action in vuex store
updateUser(){
const fd = new FormData()
//check if avatar is of type file
if ('File' in window && this.avatar instanceof File){
fd.append('avatar', this.avatar, this.avatar.name)
}
fd.append('_method', 'PUT')
fd.append('city_id', this.userData? this.userData.city.id:this.city)
fd.append('oldPassword', this.oldPassword)
fd.append('newPassword', this.newPassword)
this.$store.dispatch('User/update', fd)
.then(() =>{
this.success = this.user.user.message
}).catch(err => {
this.error = err.response.data.message
})
}
the above method triggers this vuex action
update({commit}, user){
return axios.post(`/api/${user.name}/update`, user)
.then(( {data} ) => {
commit('UPDATE_USER_DATA', data)
})
}
And here's the UPDATE_USER_DATA mutation
UPDATE_USER_DATA(state, userData){
let user = localStorage.getItem('user')
const data = JSON.parse(user)
state.user.user = userData
data['user'] = userData
localStorage.setItem('user', JSON.stringify(data))
}
This is the laravel method that's called
public function update(User $user, Request $request)
{
$attributes = [];
if(request('city_id') && $request['city_id'] !== null){
$attributes['city_id'] = $request['city_id'];
}
if (request('oldPassword') && Hash::check($request['oldPassword'], auth()->user()->getAuthPassword())
){
if(request('newPassword')) {
$attributes['password'] = Hash::make($request['newPassword']);
}
} else{
return response()->json([
'message' => "L'ancien mot de passe est incorrecte.",
'user' => $user
], 400);
}
if (request('avatar')) {
$attributes['avatar'] = request('avatar')->store('avatars');
}
// This is where I have the issue
if (!empty($attributes)){
if($user->update($attributes)){
return response()->json([
'user' => $user,
'message' => 'Votre compte a été modifié avec succés'
], 200);
}
}
return response()->json([
'message' => "Votre compte n'a pas été modifié, réessayez plus tard",
'user' => $user
], 400);
}