The badges/chart images are cached so they are not updated. If I tried to force an update by adding some params to the badge img url, GitHub reports that a non image is returned or something like that.

Same here: https://profile.codersrank.io/user/justinmemphis

But it looks like it works with time - or at least you all got your charts working.

Same here: https://profile.codersrank.io/user/narthur

I also have issues with Activity Chart at https://profile.codersrank.io/user/konard/