I’m sure there’s nothing wrong with the program at all =)
Modern webapp deployment approach is typically to have an automated continuous build and deployment pipeline triggered from source control, which deploys into a staging environment for testing, and then promotes the same precise tested artifacts to production. Probably all in the cloud too.
Compared to that, manually FTPing the files up to the server seems ridiculously antiquated, to the extent that newbies in the biz can’t even believe we ever did it that way. But it’s genuinely what we were all doing not so long ago.