Clicking the "everest" or "celeste" button in Olympus causes a crash, and mods don't work

[clear flax]

I just installed the latest everest build after trying to play modded celeste, after realizing mods stopped working. I did that and now I can't even open the game. This error pops up (see image). Idk how to take screenshots on desktop mode on a steamdeck.

[errant mantle]

please read maddie's #modding_announcements post

[clear flax]

Oh, alright, I'll just install olympus again ig

Update*