[Bug] No upload to server

[Breathe-of-fate]

HyperOS 3
Poco F7 Pro
SukiSU Ultra

Databackup doesn't download to webdav.yandex.ru. There is a connection: I can choose a folder to upload to, a message that connection is established appeared, but the progress stops after backup the app.
If I chose a local backup the app makes it, it is ok. The problem only when I try to upload to Yandex.

[XayahSuSuSu]

Does this WebDAV provider offer a free trial? I need to test it directly

[Breathe-of-fate]

Yes. You can try it yourself. https://disk.yandex.ru/client/disk

Actually the same thing happens with Koofr.

Does this WebDAV provider offer a free trial? I need to test it directly

[Breathe-of-fate]

Does this WebDAV provider offer a free trial? I need to test it directly

Do you need any assistance?