TileEntity

Create a Forge 1.20.1 instance and make sure all mods are for 1.20.1

The last mentioned mod is immediatelyfast - make a test without this mod

Was the last added mod betterpingdisplay? If not, remove this mod

Maybe a conflict with AchievementOptimizer - make a test without this mod

Allocate more RAM to the server

Make a test with Embeddium instead of Rubidium

Remove the mod nvidium

Make sure you are using Java 17 Also check for the logs-folder for the latest.log and add it here

Make a test with another Launcher like MultiMC, AT Launcher or Technic Launcher

Backup your files and completely reinstall this modpack instance

Then I have no idea - report it to the creators

Are there other mods or just pixelmon?

Change -Xmx1G to -Xmx4G

Add crash-reports with sites like https://paste.ee/ Use a pre-configured modpack as working base - most of these already have a server pack The just add new mods one by one

The link is not working

Remove dawnera from the server

Use a pre-configured modpack as working base - most of these already have a server pack Then just add some mods one by one

Add the crash-report or latest.log (logs-folder) with sites like https://paste.ee/ and paste the link to it here

Backup and delete the config folder

Does it work without bookshelf and the mods requiring it?

dawnera is not working on servers

Add the latest.log (logs-folder) with sites like https://paste.ee/ and paste the link to it here

Add crash-reports with sites like https://paste.ee/ Make a test without essential

Try other builds of bookshelf

The file name is SpartanMetals-v2.1.1.jar