My site got an error message

[bs135]

This error massage is

Message status:   critical

Date:   2013-07-30 22:21:33

Number of repetitions:   2

Error: Error in data of page with controller: 'pages/product/product'. Please check for key_value present where key_param was set

Currently, the site is operating normally.
Just, is that error serious?

Thank you.

[abolabo]

please post a data of table "pages".

[abantecart]

Did you do any updates to abantecart database tables?