Moving server to new VPS. Need help

Hey. We are currently running our server on a VPS and we are looking to transfer to a different VPS provider. We are wondering what files are needed, as some are not copying. Our method right now is to copy all the server files on to one persons PC and upload them to the new VPS, but a few artifact files won’t copy. We are also wondering if our upvotes will remain with the server through this process? It would be amazing if someone who has done this before or knows how to go about it could come kick it in our discord and help us out. Any help is appreciated thanks.