It Is a custom modpack and the first time I started the modpack everything went smoothly, now it doesn't start anymore

What Happens

Game crash on load and i haven't modified any recipes

Crash Log

https://pastebin.com/aG1e3SZL

Affected Versions

Do not use latest; please supply accurate version numbers.

• Minecraft: 1.12.2
• Forge: 14.23.5.2838
• CraftTweaker: 4.1.19
• Pyrotech: 1.2.7
• Athenaeum: 1.17.3

I'm sorry, i have closed the issues for mistake

Thanks for the report!

Can you please provide links to the following config files found in config/pyrotech:

• core.compat.Ore-Custom.json
• core.compat.Ore-Generated.json

Also, have you removed any mods since the first load? Specifically any mods that have ores?

I believe I have fixed this issue in 1.2.8. If it still crashes let me know. :)