I see two similar reports, is mine a new issue?

Notes:
on startup looking for client side classes

crash report:
https://gist.github.com/0a87183a16e5eb50fa5836fae25b061e

fml server latest:
https://gist.github.com/20d891f3c3fc2f5f1c193e91452d7fbe

If I have some mood and time i'll fix it. Don't expect that this is soon

same as #21