How can I apply general map to pmmp?

I want to apply like another that I make it to pmmp worlds. How can I?

 

there is a /worlds folder

 

? I mean if I change worlds\world folder, server crashes

 

What is the error? look in /crashdumps

 

You can not bring the world "world" : cannot identify format of world.
[23:41:22] [server emergency and thread] : The world is not to be brought.


like this..?

 

Zip the world and send here

 

Here is. and actually it is made in about 2015, I think.

 

You probably have to convert to pmanvil format (if I remeber correctly). If I found the tool I'll send you

 

@Hoyee It took a bit longer because your world was currupted and old. Now I converted it fixing all bugged tiles, and other glitch. Please let me know if it works. For using multi worlds I suggest you using Multiworld.

 

It doesn't work. it says
Unable to bring up the world: Unknown generator "void"
[Server thread/EMERGENCY]: The basic world has not been called in

 

Have you enabled multiworld? In my server, the world is not default, it perfectly works.