This happens with another mod too but when I try to play, at some point of the loading, it just crashes saying:
Macaw's Roof - BYG (macawsroofbyg) has failed to load correctly
java.lang.NoClassDefFoundError: com/mcwroofs/kikoz/objects/roofs/RoofBlock
And wont let me go to the main menu.

Here's a screenshot:

Crash log: https://pastebin.com/raw/s26YiMMi

Minecraft version: 1.16.5
Forge version: 36.2.39
Server software: Mohist

Mod list: https://pastebin.com/raw/aGNbUKHt

Oops sorry, should be public now.

the pastebin is private

They are still not public.
But otherwise I tried the latest version 1.16.5 with these mods:
byg-1.3.5
macawsroofsbyg-1.16.5-1.5
mcw-roofs-2.2.0-mc1.16.5-forge

crash-2022-09-11_15.46.20-fml.txt
Theres the crash log, maybe it's another mod causing the mod to crash?

Issue solved, thanks for the help.