Incompatibility between Continuity and Death Knights (RPG series) when loading both with Connector

[OlDenis]

Mod Name

Death Knights (RPG series) and Continuity

Mod Homepage

https://www.curseforge.com/minecraft/mc-mods/death-knights and https://www.curseforge.com/minecraft/mc-mods/continuity

Minecraft version

1.21.1

Describe the bug

Both problematic mods work fine with Connector as stand alone mods. When loaded together, Continuity cannot see Connector and crashes the game launcher.

Steps to reproduce

1. Install Continuity and its dependencies in a NeoForge 1.21.1 instance on ModRinth
2. Install Death Knights (RPG series) in the same instance
3. Install Sinytra Connector
4. Launch the game instance
5. Game launcher shows error with Continuity mod.

Logs

https://gist.github.com/OlDenis/1297d18b45b58a6a8d9de7d578ac856d

Additional context

The two mods are meant to be part of a larger modpack using NeoForge 1.21.1