I sorta fixed it, if you go to the Weather2>Files> then instead of going to weather2-1.20.1-2.8.1, you go ONE BELOW it, which I will link here. It is compatible with the same Coroutil as before.
The new file is just bugged. You can also use summon command in this version.
Here is the 2.7.7. version.

https://www.curseforge.com/minecraft/mc-mods/weather-storms-tornadoes/files/4871414

Same... I think Something is wrong with the update