Image does not upload

I am trying to upload the logo. It saves the filename but does not upload...

Also, the file should be renamed but it saves as it is...

See the controller here"

public function save_settings(Request $request, Admin $admin)
    {
        $admin->title = request('title');
        $admin->logo = request('logo');
        $admin->description = request('description');
        $admin->facebook = request('facebook');
        $admin->twitter = request('twitter');
        $admin->instagram = request('instagram');
        $admin->linkedin = request('linkedin');

        // Logo update and deleting from the storage
        if($request->hasFile('logo')){
            $filename = time() . '.' . $request->logo->getClientOriginalExtension();
            if($admin->logo){
                Storage::disk('my_files')->delete('classific_img/' . $admin->logo);
            }
            $request->logo->storeAs('classific_img', $filename, 'my_files');
            
            $admin->logo = $filename;
        }

        $admin->update($request->all());
        return redirect()->route('settings', compact('admin'))->withMessage('Site settings has updated successfully!');
    }