Main thread crash

[PxelBlade]

Description

When I try running ferium modpack upgrade it gives me this as a result:
thread 'main' panicked at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/alloc/src/vec/mod.rs:1528:13: swap_remove index (is 0) should be < len (is 0) note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

Steps to Reproduce

1. add modpack
2. run ferium modpack upgrade
3. fails

Operating System

Linux

Installation Method

GitHub Releases (manually installed)

Ferium version

ferium 4.7.1

Additional Information

No response

[theRookieCoder]

What modpack specifically is this? I'm guessing but I think this crash occurred because the modpack has no files listed. Anyways this shouldn't cause a crash and the error should be handled, but it's still a highly unlikely situation to end up in.