Error Cloud Sync

Hello,
In reference to the reported problem (https://help.locusmap.eu/topic/37794-duplicate-folders) I checked a few things and indeed Locus Map Classic was responsible for creating new folders in the LM4 library. Therefore, for the time being I uninstalled LMC, tidied up the library (i.e. moved points and routes to one - the first with the largest content, folder). In the application, everything seemed to be fine, so I did a cloud synchronization. And another problem, it completely cleared my library in Locus Web Planner (attachment 1). After restoring the backup and trying to synchronize in the cloud again, only a laconic message about the lack of synchronization is displayed even without an error code. (attachment 2)
Restoring subsequent, older backups, reinstalling the application and resynchronizing in the cloud end with the same - the message as in attachment 2 and still a cleared library in LWP.
I've been using LM3/classic for about 8 years, LM4 for about 4 years, so the app is not new to me, but I'm slowly losing patience with it.
I have LM4 version 4.29.0 gold subscription, phone with Android 12.
And finally, an additional question, is it possible to turn off automatic LM4 update and if so, where to find this setting.

Best regards,
Wojciech Wójcik