Unable to upload custom world

OS Name/Version:
Debian 10 with Game Panel
Product Name/Version: (Always use the full version number - not ‘Latest’)
Minecraft Java 1.19
Problem Description:
I tried to follow this tutorial ( How to upload Minecraft custom World to your server on Game Panel? | Hostinger Help Center ) on how to upload a custom world to my server, but every time I go through the process, the world doesn’t change. When I start running the server after stopping it, the old world file seems to reappear (even after trashing it) and whenever I extract my zipped world file it doesn’t add any new world to the server’s game files, I’m at a loss as to what to do

Steps to reproduce:

  • Step 1
    Delete existing world folder, upload zipped custom world
  • Step 2
    Extract zipped file, nothing happens
  • Step 3
    start up server, nothing has changed

Actions taken to resolve so far:
I’ve tried to reupload the zipped world file several times, change its name (all lowercase), reload my game panel

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