Windshield washer? check washer fluid level in tank under the hood. usually has a picture of a windshield wiper with spray on the cap. If it's empty, fill it.
If not, check the wiper fuse under the dashboard. Look in owners manual to tell what a bad fuse looks like. Replace with fuse with same number on it.
Otherwise maybe a bad pump motor, Go to autozone for help.
check fuse first.. then check for power at the pump
Maybe because it finished the wash cycle????
It is old and it broke.