Hello I have hosted a few Minecraft servers, vanila, tekkit lite, and now I am trying to run a tekkit Space server. However I am getting a ID mismatch error and I can not fix it. I have tried replacing the configs, mods, and coremods folders with the ones I have on my working client and nothing seems to work.
TekkitProblem by robirt55, on Flickr
Thank you in advance!