Modpack version
1.24

Can the issue be reproduced?
yes by just downloading the modpacks server files

Issue
the issue is everytime i go to start the server it says unrecognized option -D64
Running Linux ubuntu 18.04 i believe

https://imgur.com/j73CR7Q

It's a parameter that makes sure 64-bit java is used, I guess that's invalid on Ubuntu. You can safely remove it yourself :)

i dont suppose you could lend a hand and let me know where the parameter is as i cant find it anywhere in the linux version only in the .bat file

settings.cfg line 6

I'll look into it asap, but I'm afraid I'll be away from my laptop most of the day.