Hello, we have just deployed a new version of copr-frontend package, which deprecates F22 chroots and enables F25 ones. There is actually more than that. Also pull request of Conan-Kudo ( https://github.com/fedora-copr/copr/pull/12) was included and few bugfixes as well (#1368259 and #*1369392* https://bugzilla.redhat.com/show_bug.cgi?id=1369392).

Enjoy. clime