Litecoin core link werkt niet meer

After LCC was created I could get 10 of it for each LTC, my old wallet had to be cleaned, so no more LTC’s in it. The LTC’s moved to a litecoin core wallet. Not any problem untill now. I did a reinstall of W10 and after that the link to Litecoin core didn’t work anymore. Via back up I got mij wallet back but without my 50 LTC’s . How to get my LTC bak ?? regards