What may cause ognl.InappropriateExpressionException warning ?

[Emi Lu]

Good morning,

When switching query result page by page (online), I got the following 
warning message:

WARNING: Error setting value
ognl.InappropriateExpressionException: Inappropriate OGNL expression: (d 
- 6836677) - p

I am lost. Could someone tell me what may cause this warning please?

Thanks a lot!

--
Lu Ying

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