Invalid buffer size (while FTP)

Hi,

here is a production issue, am getting "Invalid buffer size" from an unix ftp script.(AIX Operating System)
this script is running on daily basis, but am getting this error first time.
can any one help me on this?

I think Hihere is more than that.
And running on daily basis but am getting this error first time is AIX Operating Systemthis script.
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