You cannot delete profiles without breaking the save, it's not meant to be edited. It can be opened with WinRAR for example, but when you do you do so on your own risk without any support.
The size of the world has nothing to do with the savegame. You change the size in the WorldGenerator.eco config file in the Configs folder before creating a world. Totally different topic from your first two posts.
Sorry, i don't really understand what the issue is. Editing the game save files is not possible and will lead to issues, we do not offer any support for that. In case changing the WorldGenerator.eco file does nothing at your host, please contact your hosting provider to get help.