I'm trying to start my server and I'm getting this

I've tried using a fresh server pack and moving the world file, didn't work

Doesn't appear ATM8's server pack has a built in backup system, or I just can't find them. So not been able to try and restore

Tried reinstalling Java DK 17 but no good either

For your main issue, can i see the Latest.log file from the /server/logs/ path, using https://mclo.gs/

as for backups, the mod "Simple backups" is in the server pack just set as .jar.disabled to prevent it loading and interfering with server hosts and their systems, you can enable it by removing the disabled from the file name.

kinda need the link to the log please

Sorry, I've updated my comment

Thanks! I've posted the logs now :)
https://mclo.gs/1zuCp4v

Looks like Ferrite core broke during startup, it's config seems broken, locate and delete ferritecore-mixin.toml from the configs and restart, if that does not solve it , remove the mod, and start without it, if it works, then re-add

Okay, getting somewhere

Did what you asked and it didn't change, I was getting this error

I added back Ferritcore and it's config

I then followed the same thinking and removed NoChatReports and deleted the config

Then I was getting this and here is the crash report

Finally, tried getting a new NoChatReportsv1.5.2 file from the CurseForge site and got this

So I tinkered some more and after removing the mod to test I found like basically every config file was causing the server to no launch. But only the configs within "World -> serverconfig"

I created a new server, deleted every single config from the none working server's world file under "Server config" folder. Moved everything to the new server file and it worked first time

Only needed to tinker with the ops, whitelist etc as expected

Also, I enabled the SimpleBackups mod to help make this process easier in the future (We live and we learn here, I presumed something would be going already for backups)

All working now, thank you for your input :)