Crashing only with Galacticraft

Jan 24, 2019
Hey so I've made my first server, got the whole thing up and running. Works with other mods, but the second I install any galacticraft mods the server crashes.
Also tried several times but opening the download page on your website creates no download and I can't find one in the page, so I've tried alternate versions of Galacticraft, which i thought would be my issue, but I installed the expansion galacticraft just to try and even that crashed my server.
Using Forge on a 1.12 ver server
Please help setting it up for my little sister!!!