Serene Seasons API Stub (Ecliptic Seasons Bridge) an addon to Ecliptic Seasons that's meant to make both mods compat make Project Atmosphere: Realistic Climate & Weather crash on world load with the error in image
Mod Link: https://www.curseforge.com/minecraft/mc-mods/serene-seasons-api-stub-ecliptic-seasons-bridge
My guess just from the mods desc first line **A compatibility bridge that lets mods built for the Serene Seasons API run on Ecliptic Seasons by providing a sereneseasons API stub and forwarding season data to Ecliptic.** that its stealing the API before season plus can get it and crashing the game