[13:05:12] [Server thread/FATAL] [ne.mi.fm.lo.RuntimeDistCleaner/DISTXFORM]: Attempted to load class net/minecraft/client/gui/screen/Screen for invalid dist DEDICATED_SERVER
[13:05:12] [Server thread/WARN] [RoadRunner EntityClassGroup/]: Entity Class com.github.wolfshotz.wyrmroost.entities.dragon.SilverGliderEntity could not be analysed because of a java.lang.RuntimeException: Attempted to load class net/minecraft/client/gui/screen/Screen for invalid dist DEDICATED_SERVER! Assuming the worst outcome, we're not going to override any behaviour here.
[13:05:12] [Server thread/WARN] [RoadRunner EntityClassGroup/]: (If the class above belongs to a mod, they probably forgot to annotate their client-only code).