Missing files uploaded via File attachments

Hello dear developers Drupal!
Missing files uploaded via File attachments. And not just vanish from the page and from the map, but also from the server. This applies to both new files and those that have been downloaded by another 6 core. Lost files with the pages that I work with now. For example, there were 13 files in the list, and suddenly left 1.

kernel 7.19

installed modules

Aggregator 7.19
Block, Blog, Color, Comment
Contact, Content translation, Database logging
Field, Field SQL storage, Field UI
File, Filter, Forum, Help, Image, List, Locale
Menu, Node, Number, Options
Overlay, Path, Poll, Profile, Search
Statistics, System, Taxonomy, Text, Toolbar, Trigger
Update manager, User.
CCK, Content Migrate, CAPTCHA, Image CAPTCHA, Image legacy,
CKEditor 7.x-1.12, Content Access, Localization update, Chaos tools,
Node Reference, References, User Reference, Mail System, Mime Mail, Simplenews
Views, Views Slideshow, Views Slideshow: Cycle, Views slideshow: DDblock, Views Slideshow: Galleria, Views UI
Advanced help, Advanced help example, Field convert, Libraries, Pathauto, Token, Transliteration, Weather,
Taxonomy Block, SpamSpan.