[2020] Server not generating terrain

Hi all,

I have purchased a server, I have configured everything such as name, difficulty, what player spawns with etc.

I emailed the hosting company, who told me that once I changed the world size, / anythign else in the file I need to delete the storage folder and restart the server, but the below happens. It works perfectly if it generates the default sized world.

I am beginning to think their dashboard might not be the best for wanting to change anything in the files... can anyone suggest a fix for the error or a better host (UK)

[06:23:23] Generating world 1.44km²...
[06:23:41] Generating world 1.44km² finished in 18,874.5ms
Finished in 18,936.1ms[06:23:41] Server Initialization finished in 35,085.6ms
[06:23:41] Failed to load server, Exception was Exception: NullReferenceException
Message:Object reference not set to an instance of an object.
Source:mscorlib

System.NullReferenceException: Object reference not set to an instance of an object.
at System.Object.GetType()
at Eco.WorldGenerator.WorldGeneratorPlugin.InitModules(Module module, Random randomizer)
at Eco.WorldGenerator.WorldGeneratorPlugin.InitModules(Module module, Random randomizer)
at Eco.WorldGenerator.WorldGeneratorPlugin.CreateWorld()
at Eco.WorldGenerator.WorldGeneratorPlugin.Initialize(TimedTask timer)
at Eco.Server.PluginManager.InitializePlugins()
at Eco.Server.PluginManager..ctor()
at Eco.Server.Startup.Start(String[] args)