This type of problem usually indicates a hardware problem. It could be a bad card, an aging hard drive, a bad cable if you are connecting the camera directly to the computer. It's a troubleshooting challenge, but you'll have to identify what the problem is.
Which version of Lightroom are you using?
This could be a corrupt Cf card.Have you tried a different card?
Have you tried importing other images in Lightroom ?
I am using Lightroom CC. I am right now trying another card to if it is that
I think i could be the cardreader. I will try another tomorrow morning.
It was one of the pins inside the card reader that was damage.
Thank you for help :-)