modded forge server getting stuck at version check

[Rimutem]

[13:26:51] [Forge Version Check/INFO] [ne.mi.fm.VersionChecker/]: [supplementaries] Starting version check at https://raw.githubusercontent.com/MehVahdJukaar/Supplementaries/1.20/forge/update.json
[13:26:51] [Forge Version Check/INFO] [ne.mi.fm.VersionChecker/]: [supplementaries] Found status: BETA Current: 1.20-2.8.10 Target: null

Whenever I try to launch my Prominence II (Classic) server, it loads but then it will get stuck when it starts the version check for Supplementaries mod. What can I do to fix it? I have the latest versions of Moonlight Lib and Supplementaries mods. It also gets stuck at checking version for Iceberg mod when I take out the supplementaries mod.

[TileEntity]

Try other builds of this modpack