How to upload your Minecraft world (That you may have made in single player) into your multiplayer server:
Uploading a world1) ZIP: Locate the world folder on your PC, zip up the custom map's
folder (So if the world's folder name is MyWorld, zip that, don't start the zip from inside that folder)
2) Go to File Manger on your STIPE control panel
3) UPLOAD: Drag and Drop the zipped file from your PC to File Manager
4) EXTRACT: After upload is complete, right click the new uploaded file and click EXTRACT
5) ACTIVATE: Go to Express Settings section of the control panel and scroll all the way down to World Management, you should see your new world (eg MyWorld) that you uploaded there. Just click ACTIVATE and start server!
Note: If your world is very large, eg 1GB in size or more, then you will need to use FTP to upload your world. Go to FTP File Access section and follow steps from there to connect to your server files and upload
VIDEO TUTORIAL:
Please see HERE:
https://stipe.com.au/?page=video.php&videoname=UploadingWorld