Informix Error -12027

-12027 Smart Large Objects: Cannot delete SB_LOHD_SLOT.

You cannot delete the LO header page for a smart large object. The chunk or sbspace might be inaccessible or the LO address might be invalid. Ensure that the chunk is accessible. Ensure that the smart-large-object address is still valid--that is, the smart large object has not already been removed.