The backup not continue after detect this problem: ANS1028S An internal program error occurred

The backup not continue after detect this problem: ANS1028S An internal program error occurred.

Detail error reported is:
.
2012-03-24 12:11:57 ANS9999E ntrc.cpp(768): Received Win32 RC 1235
(0x000004d3) from FileRead(): ReadFile
'\\cluster32\n$\GRP\SPA\C15C0\SUSCRIPCION\C A R T A S\GARCIA DEL
PRADO_MANUELA.DOC'. Error desription: The request was aborted.
2012-03-24 12:11:57 cuFSUpd: Received rc: -50 trying to read a EndTxn
verb
2012-03-24 12:11:57 sessSendVerb: Error sending Verb, rc: -50
2012-03-24 12:11:57 cuFSUpd: Received rc: -50 from cuBeginTxn
2012-03-24 12:12:07 ANS1028S An internal program error occurred.
.
The problem is that the backup not continue after detect this problem.
.
They have opened a pmr some time ago and the answer was:
.
"TSM does not simply backup file data, it also backs up the file
attributes, such as the NTFS security attributes for the file. The RC
1235 is often received for the security information for a file"

"RC 1235 = "The request was aborted".
Same issue have had something hold onto the file which does not enable
us to read the file, such as DiskXtender"

In this case, the error being reported is coming from windows. TSM is
making a call to the system for information on the file but the call is
failing outside of TSM which is why there is a windows return code. Most
often these will have to be addressed outside of TSM as it is the OS
that is stating a failure and TSM is simply catching the report.
.