no file walet.dat , and i changed all the files and folders to your downloaded link, sync got stuck on 77.25%
You dont need just "change" it, you have to delete everything except wallet.dat from /Lux folder (make sure that u have enough backups of wallet.dat, you can find few in /Lux/backups folder before deleting), than download LUXblockChain.zip (see link in guide) and unzip it in /Lux, run Qt wallet. You should be good by following that steps.
In case if issue still occur try to use a previous wallet verision, 5.3.2 is in the same blockchain as 5.3.2.1.