ftp quota not set correctly
Eg:
Value set: 100000 (MB), which is normally 100 GB limit, will result with this ftp error message :
226-Error during write to file 226-10238693 Kbytes used (9%) - authorized: 102400000 Kb
102400000 Kb = 10 GB.
Looks like a problem with kb / mb conversion limit. in core.