Minecraft Nero

I've been trying to play minecraft nero with my friend, but everytime we try to join the server it says Mod rejections [FMLMod:CarpentersBlocks{3.3.7}], and we have tried fixing it, we have done research, and we can't find a thing, can anyone help me and let me know if there is any possible way to fix this. Thank you.

i did i used technic pack launcher, unless u mean something different?

and if u do mean something else, how do i do that?

ok so i was just looking around the modpack folder, and in the mods the version of the carpenters is 3.3.8, not 3.3.7,so maybe thats the problem, but ive looked for carpenters 3.3.7 download and i cant find it, so are there any other way i can load up nero, like ftb?