Having examined the file it appears this is the normal type of error where all the user content
before the error is displayed OK. However, all the user content
following the error, even well formed content, is not displayed even though it is still present in the document.xml file.
I think the error has been caused by LO when writing a .docx file.
The last word displayed in the corrupted file is "Схема:"
When I pretty printed document.xml I got an XML parsing error at line 18625 "Namespace prefix pic on bodyPr is not defined". I do not know what that means nor how to fix it. Had I been able to fix it I think the file would then have opened. There have been other posts - see
search on namespace prefix
Very soon after "Схема:" a <mc:AlternateContent> tag appears which means what follows is not part of the OOXML standard. The error causing the problem is within the AlternateContent about 120 lines later. The AlternateContent is probably an MS Textbox.
The only thing I could do was strip all the XML tags to recover all the user text in the file. It is completely unformatted but it does have all the user text. If you want the images just unzip the .odt file and look in the media folder.
NB This file is complicated by having an MS Textbox (an MS Textbox is part of MS Draw). LO
supports and displays MS Textboxes and their content but
AOO neither supports nor displays MS Textboxes. Hence, regardless of the error, AOO would never have displayed anything between the <mc:AlternateContent> and the </mc:AlternateContent> tags.
See
[Tutorial] Differences between Writer and MS Word files for why you should always work in and save files as .odt.