This is almost always a version mismatch. Meteor Client updates incredibly fast, and older addon builds will fail if the base client API changes.
: It provides various utilities primarily used for anarchy or utility-heavy gameplay, such as
He leaned back. The filename was ugly. The code was a scarred, patchwork mess. But it worked.
1.21.11 Build. Latest. Commits. 6a56030: Make ExploitPreventer optional (#532) (crazymoose7) #532. Assets 3. meteor-rejects-addon- meteor-rejects/README.md at master - GitHub
If you feel like the base Meteor Client is missing that one specific "legacy" feature you loved, this addon is the answer. It’s the "Swiss Army Knife" of addons that turns a great client into an unstoppable one. Just make sure you're using the version that matches your Minecraft version (e.g., 1.20.x) to avoid startup errors.
If you need to tweak your client setup further, let me know your or any specific crash log errors you run into so I can help you fix them! Share public link