Plugin crashes due to lack of DataFileModel class definition on latest October version

[erocketa]

Hello,
plugin doesnt work on latest October version

After plugin activation, any attempt to view front site leads to an Exception
Symfony\Component\Debug\Exception\FatalErrorException

We're sorry, but an unhandled error occurred. Please see the details below.
E:\Install\dev\wamp\www\octobersite\plugins\lovata\buddies\models\User.php line 68
~/vendor/october/rain/src/Foundation/Application.php

• @method static \October\Rain\Database\Relations\HasMany|\Lovata\OrdersShopaholic\Models\UserAddress address()
• @Property \Lovata\OrdersShopaholic\Classes\Collection\UserAddressCollection|\Lovata\OrdersShopaholic\Classes\Item\UserAddressItem[] $addr
  */
  class User extends UserModel
  {
  use SoftDelete;
  use DataFileModel;

property DataFileModel is undefined

It looks like, there is no class definition for DataFileModel in plugin code

Is there any way to fix this?

Many thanks,
Vlad

[erocketa]

Trait 'Kharanenka\Helper\DataFileModel' not found
www\octobersite\plugins\lovata\buddies\models\User.php line 68
there is no namespace or Kharanenka in plugin codebase