Startup Issue with Minecraft - Server won't start with required client for modpack

[Yoshi_Sawatzky]

System Information

Field	Value
Operating System	Linux - Debian GNU/Linux 12 on x86_64
Product	AMP ‘Callisto’ v2.5.0.12 (Mainline)
Virtualization	Docker
Application	Minecraft
Module	MinecraftModule
Running in Container	Yes
Current State	Failed

Problem Description

Issue

I want to play the modpack Roguelike Adventure and Dungeons on my server. However, the pack plays on forge 14.23.5.2860 and when I change the server to useing this forge version, it no longer starts.

Reproduction Steps

• Update server
• Change client
• Ensure modpack is on most recent client available

[ThePotatoKing]

Make sure to read the log to see what’s going on, not like we can read minds or anything lol.
Though if I were to guess, you need to switch the server to use Java 8.

[Yoshi_Sawatzky]

The only line in the logs with a warning says this:
[00:15:18] [ServerMain/WARN]: Failed to parse level-type default, defaulting to minecraft:normal

But switching to Java 8 made all the difference!

Thanks so much!