Does this error occur after you run a full file backup?
There is an advanced setting to make this a non-fatal error in the advanced settings (but you should check if D:\urbackup\Jana-THINK\170206-1829\Documents\20161127155458.jpg is corrupted).
the last full-backup is a while ago - I need to check this.
A remarkable thing is that all these errors (about 5 in total) are just in .JPG files.
I checked the files with file-compare and they are identically on both sides.
Could it be something like NTFS-streams or aother “windows-specific” things that won’t be copied over ?
Renaming the file did not help either (tried that a while ago).