Error while trying to update mods

[thick hull]

I've been trying to update my mods, I think that they are strawberry jam and monika's d sides, but this message pops up everytime I try to do so

[shadow haven]

To update Everest go to Olympus and click the cog on the top line, next to the Everest and Celeste buttons.
Select the version you want to install, typically this should be the latest stable, then press install.

If Everest or Lönn are currently open, close them since they open files in a way that prevents them updating.

If your Olympus does not look like this use the /updateolympus command

[thick hull]

It didn't work

[full steeple]

I think that meant you should update mods or everest via olympus launcher, instead of opening Celeste to do

Or also you can find and update them in banana