What happens if the Contractor does not notify a compensation event under Option X2 within eight weeks?

What happens if the Contractor does not notify a compensation event under Option X2 within eight weeks?

If the Contractor does not notify a compensation event within eight weeks of becoming aware of the event, he is not entitled to a change in the Prices, the Completion Date or a Key Date unless the Project Manager should have notified the event to the Contractor but did not (see Clause 61.3).