Copying large files issue with WebDAV mounted drive

I’m using RAIDRIVE 2023.9.170 trial version.
It is installed on Win2k19 SRV Standard edition (for testing purposes)
The disk using WebDAV is attached from Synology NAS
(RS422+, DSM 7.2-64570 Update 1)
Total space 1Tb, Free space 800Gb
I’m using Windows File Explorer.
I faced the issue when was trying to upload to the disk backup file (size 240Gb):
windows error message: "There is not enough free space in destination folder).
15Gb files uploading well.
How can I resolve the issue?
May be there is trial / WebDAV limitations for file transfer size ?