Data Decimal Error MCH 1202 in Advisor Report

i came across this error not in RPG/ Cobol programming, but during generation of Advisor report when using command GO PERFORM.

Performance data were taken from a V5R3 server of customer side, then restored to our V5R3 server.

Was generating 5 days of Advisor & Performance report, from 5/1/09 to 9/1/09.

For Advisor report :
---------------------
5/1/09 - 'Performance thread data sucessfully converted'
6/1/09 till 9/1/09 - 'Data Decimal Error'


For Performance report :
------------------------
Pool report - 6/1/09 till 9/1/09 all no data, with only headers.

System report - 6/1/09 till 9/1/09 : last line read:-
'Section not printed or partially printed due to missing data : Disk Utilization, Communication Summary, TCP/IP Summary'


WRKSBMJOB- chk spool files and look into any available QPJOBLOG, get codes like CPI3210 Information, CPF4028 Diagnostic & PFR9805 Escape .

in Spool file :
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CPI3210 Information,
Message . . . . : File QAPMJOB2 in xxxxxx shares access path.
Cause . . . . . : An access path was found that had the same attributes and key fields as the member being created. Member Q009000003 file QAPMJOB2 in library xxxxxx shares the access path logically owned by member Q009000003 file QAPMJOBL in library xxxxxx. .....


CPF4028 Diagnostic
Message . . . . : Open of member Q009000003 was changed to SEQONLY(*NO).
Cause . . . . . :
Member Q009000003 file QAPMTJOB in library IFAMSDR wasopened with the SEQONLY(*YES) parameter specified in the program or on the Override Database File (OVRDBF) command. However,the parameter has been changed to SEQONLY(*NO) because of condition 2 shown below:
.....
.....


PFR9805 Escape
Message . . . . : Performance report partially printed due to missing data.
Cause . . . . . : A performance report has been printed but some sections were not printed because the files to produce those sections were not found. The most probable reason is that the performance information required to process those sections is not present on the system.

Recovery . . . : To produce the missing sections of the performance report, collect the required performance measurements. Use CRTPFRDTA command to produce the necessary files. Then try the request again. See "Report Selection Criteria" section in the report for a complete list of the sections printed.
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And because of above, the Memory Utilization performance graphs were unable to be generated.

Didn't mess around with the programming part of our system, but wondering why came out above error which look like error coming from the programming part.

Is it the problem caused by corrupted memory pool of customer's server resulting in missing data, or is it problem from our server side, or other causes ?

Any ideas appreciated very much ..