Information

Minecraft version: 1.15.2
Forge version: 31.2.36
Environment: Singleplayer

Mod name: Collective lib
Mod version: 1.39

When launching minecraft forge with collective lib then crash with exit code -1

Do you have the logs and crash report? If so, can you please upload them both here if possible?

here you are
crash-2020-09-07_17.42.20-client.txt
debug.log
latest.log

Hi. First of all please download my mods from https://www.curseforge.com/members/serilum/projects alone. All other sites steal their content for advertisement revenue.

It seems like the Collective mod has nothing to do with your crash. Seems like it's a problem somewhere else.