Using Fabric

I know there is another topic that is the same as this but it does not seem to be active anymore so I am making this one. I used the same stuff said in Fabric on mineos? but it give me a error “cp: cannot stat ‘minecraft_server.1.18.1.jar’: No such file or directory” I use filezilla for FTP.

I think step 7 of my more detailed explanation should help (It’s on the previous topic) Fabric on mineos? - #18 by Cameron_Yutzy