Laravel Error: Missing required parameters - php

Question

Please help me out. I'm having the missing required parameter's error. This is the form script:
<div class="container">
<div class="row">
<!--first column-->
<div class="col-md-6 col-sm-6 ">
<!-- Default form contact -->
<form class="text-center border border-light p-5" action="{{route('updating', $update->id)}}" enctype="multipart/form-data" method="POST">
<input type="hidden" name="_token" value="{{ csrf_token() }}" >
#method('PATCH')
<div class="well">
<p class="h4 mb-4">Edit Updates</p>
</div>
<!-- Name -->
<input type="text" name="title" id="defaultContactFormName" class="form-control mb-2" value=" {{ old('title') ?? $update->title }} ">
<!-- Message -->
<div class="form-group">
<textarea class="form-control rounded-0" name="body" id="exampleFormControlTextarea2" rows="5" value="{{ old('title') ?? $update->body }}"></textarea>
</div>
<!-- Send button -->
<button class="btn btn-success btn-block" type="submit">Publish</button>
</form>
</div>
</div>
</div>
And this is my controller and edit function:
public function update(Request $request, $title)
{
$this->validate($request, [
'title'=>'required',
'body'=>'required'
]);
//Publishing Updates
$update = Update::findOrFail($title);
$update->title = $request->input('title');
$update->body = $request->input('body');
$update->save();
return redirect('admin.updates')->with('success', 'Saved');
}
And this is my route:
Route::patch('/updates/{title}/update', 'UpdatesController#update')->name('updating');
I keep getting the error and i don't know where its coming from.