Since paid version cannot restore anything

they switched to paid stuff for restoring any single backup, I cannot restore anything

Are the plugin and extensions up to date? If not, update them.
Have you tried reaching over to the support: https://servmask.com/contact-us

If you have premium extensions as you claim you have, why not contact the support team first?

Looks like I am not the only one getting into this mess. This should be enough for reconsidering your updates without advising users upfront. Do not worry about me claiming or proving anything because I hate to jusitfy myself to people that should themselves consider using a more friendly approch to their customers and OTHER users.

On the other hand the backup itseldf is far from beeing right. It does not backup everything (root files like htaccess or config and so on) making the whole restore process more likely to blow your site if you do not disable all plugins and more likely security plugins that rely upon such files (obviously people restoring a website will not restore a blank wordpress site!).

Also, the fact that you are using a dedicated packing system makes the backup unsafe since any bug or update within your code will make the whole files unreadable (a zip file is so much better to recover only a couple of files).

I understand you need money to keep up a plugin but your method is unfair since your undercover update process and “restore only on payment option” is more likely a surprising way to convince users of your good faith. Before letting people think they can recover their files please advise that they will not be able to do unless they pay. Have people pay before backing up! As easy as that.

If you are using a premium product, there is no difference for you. All that is required is an update.

When we change something in the plugin that you like or do not like, there are numerous ways to reach us and talk to us – leaving a negative review is the least likely way for us to listen to you.

Yes no difference with paid version but using the free one on other smaller websites remained an issue. I did not want to get into the same nightmare next update if you decided not to backup images or not restore files larger than 10kbytes or who knows what you might think of!
So the solution is now to remove WP Migration from every single website and use another paid plugin so not to get back into any of your wierd plugin updates attitude. The premium WP Migration plugins we bought are going straigth into the trash. Cannot take any other chance of blowing a full day updating small websites with paid versions just because you changed your mood. Anyway advise users before they backup so they know they will never be able to restore anything with the free version. Maybe use some marketing advisor before launching a hack.