Paint_Ninja

Please share how you fixed it so that others with the same problem (or future you) can know how to sort it out

The config file for guard villagers is corrupt, delete it

Sorry to hear that. Could you share a link to where you're trying to get Forge and a screenshot of the whole web browser window?

Your logs appear to be cut-off and don't contain any errors. Do you have a debug.log?

MC 1.20.1 is supported here. Virtually all mods for 1.20 work on 1.20.1 or have updates available.

Near the top of your crash report it says the breezy mod caused the error.

Try removing Optifine, it's known to break things sometimes

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

This is the relevant part of the crash report. It's trying to modify a part of the game directly instead of using Forge's API, and failing to do so.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

It seems like you're on old, experimental beta drivers from over a year ago. Updating to the latest "WHQL Recommended" (aka stable) version should fix your issue. https://www.amd.com/en/support

You have a mod trying to access a client-only class on a dedicated server. Make sure you've removed all client-only mods from your server

This is the Minecraft Forge forum. We only support Forge here, not Paper. Ask the paper community for help.

Remove Optifine, it's not meant to be installed on dedicated servers

The log is cut off and shows no errors. Try removing mods until it works, then let us know which mod was causing it

Update your graphics drivers to the latest recommended version - you're on year-old beta drivers. AMD labels beta drivers "Optional", avoid those. https://www.amd.com/en/support

Near the bottom of your log it says: Try doing a new install of Forge and make sure optifine isn't in the mods folder

What version are you porting from and to? There's some guides here which may help: https://docs.minecraftforge.net/en/latest/legacy/porting/

Update your graphics driver to the recommended version https://www.amd.com/en/support

The version you are using is no longer supported on this forum. Please update to a modern version of Minecraft to receive support.

1.19.2 requires Java 17

This error is often indicative of an outdated Java version. Please ensure your Java version is up to date. You can download OpenJDK from the Adoptium project. If the error persists after updating your Java version, please post the updated installer log as well as the contents of %windir%\system32\drivers\etc\hosts (Windows) or /etc/hosts (Mac, Linux)