Custom.pll in R12.2.4

Hi All,

Iam trying to modify the custom.pll but I keep getting the below error when I try to save the record.

Do we need to regenerate the jar files, by the way we are in R12.2.4.

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ERROR----

ORA-01403: no data found

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FRM-40735: ZOOM trigger raised unhandled exception ORA-06502.

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Code

IF (event_name = 'WHEN-VALIDATE-RECORD' ) THEN

IF (form_name = 'APXINWKB')  then

if  (block_name = 'INV_SUM_FOLDER') THEN

FND_MESSAGE.SET_STRING('IN Last Record');

FND_MESSAGE.SHOW;

end if ;

end if;

end if;

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Thanks

John