Do you have the modpack on the same version on your PC as on the server?
mhm! i removed the mods from the mod folder n that worked but if theres anyway for me to play with them in still thatd be nice 
Posts by kittencore
The Aternos forums are now deprecated
Learn more about this change here.
For help regarding Aternos, we recommend you to visit our support center.
-
-
helloo, i recently downloaded the "kinda crazy craft" modpack from curseforge, im on the right version and everything but when i try to join the server i created, this happens. i cant disable the mods in this modpack so i dont know how to fix this! please help D: