Why doesn't my camera upload?

Okay so I have the Nikon L130 and it used to upload as normal and then the other day I tried uploading stuff and it attempted to upload and then the green bar got to the middle of uploading and it froze for ages and wouldnt upload. So as i took the cable out the laptop it said 'found 7 photos' well, why wouldnt they upload? I then tried on my computer and they uploaded perfectly.what's happening?:/

You are using the USB cord to attach to your camera.

Instead, remove the memory card from your camera and insert it into a USB card reader.

Using your computer skills, make a new file folder named for the subject and date. Copy all the images to that file folder. Do this at the end of each shooting day.

Once all your images are safely on the computer, format the card using the format feature on your computer.