Is the gig finished? It’s up to the worker to submit their hours first. Only then can you approve or decline them.
Sometimes it takes a while for a worker to do this. In that case, the gig stays open under ‘approve hours’. If this happens, just contact the worker and ask them to submit their hours.
Legally, there is no fixed deadline for submitting hours. This means the gig cannot be closed earlier. Do you have questions or is this causing issues? Contact your YoungOnes contact person to discuss the options.