I have been trying to set up a modded server using this mod pack for several hours and keep getting the same error. I have done extensive research into the issue, but it leads nowhere. I deleted all the mods and re-installed them, deleted the modpack and re-installed. I deleted forge multiple times and re-installed. in the beginning I made my own server files without the mods and it worked, however when I try to add the mods via copy and paste on both client side and server side, that's when I get this error. I even scrapped the entire server and downloaded the one from the creator themselves, yet all seems to be in vain because I am still unable to connect to the server. I would love some help!