[Bug] Can't download forge modpacks

[x1msoc]

What Operating System

Linux (Other)

Debug Code

FTB-DBGAMITEGASIH

Describe the bug

I'm unable to download any Forge modpacks. I can download any Fabric/NeoForge modpack.

Steps to reproduce

1. Find any modpack with Forge Mod Loader.
2. Click the download button.
3. After a while, the app crashes with the exception I mentioned below.

Expected behaviour

Successful download and install of any forge modpack

Screenshots

Additional information

[ftb-app::background.ts] Subprocess stdout [16:57:04] [Long Running Executor 0/ERROR] [net.creeperhost.creeperlauncher.task.InstallationOperation]: Fatal exception whilst installing modpack.
net.creeperhost.creeperlauncher.install.InstanceInstaller$InstallationFailureException: Failed to install.
        at net.creeperhost.creeperlauncher.install.InstanceInstaller.execute(InstanceInstaller.java:317) ~[launcher-b53a6f5ed2-all.jar:?]
        at net.creeperhost.creeperlauncher.task.InstallationOperation.doOperation(InstallationOperation.java:49) ~[launcher-b53a6f5ed2-all.jar:?]
        at net.creeperhost.creeperlauncher.task.LongRunningOperation.lambda$wrapOperation$0(LongRunningOperation.java:74) ~[launcher-b53a6f5ed2-all.jar:?]
        at net.covers1624.quack.util.SneakyUtils.lambda$concat$9(SneakyUtils.java:111) ~[launcher-b53a6f5ed2-all.jar:?]
        at java.util.concurrent.CompletableFuture$AsyncRun.run(Unknown Source) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:?]
        at java.lang.Thread.run(Unknown Source) ~[?:?]
Caused by: java.io.IOException: Processor output validation errors occurred.
        at net.creeperhost.creeperlauncher.install.tasks.modloader.forge.ForgeV2InstallTask.runProcessor(ForgeV2InstallTask.java:338) ~[launcher-b53a6f5ed2-all.jar:?]
        at net.creeperhost.creeperlauncher.install.tasks.modloader.forge.ForgeV2InstallTask.runProcessors(ForgeV2InstallTask.java:187) ~[launcher-b53a6f5ed2-all.jar:?]
        at net.creeperhost.creeperlauncher.install.tasks.modloader.forge.ForgeV2InstallTask.execute(ForgeV2InstallTask.java:98) ~[launcher-b53a6f5ed2-all.jar:?]
        at net.creeperhost.creeperlauncher.install.InstanceInstaller.execute(InstanceInstaller.java:260) ~[launcher-b53a6f5ed2-all.jar:?]
        ... 7 more

I get this exception every time the app fails to load the modpack

OS: Fedora 40 (kernel version: 6.9.4-200.fc40.x86_64), KDE Plasma: 6.1.0