[20:16:14 WARN]: at DiscordSRV-Build-1.27.0.jar//github.scarsz.discordsrv.util.NMSUtil.fixBukkitClass(NMSUtil.java:122) [20:16:14 WARN]: at DiscordSRV-Build-1.27.0 ...
The manifest should define a buddy policy to enable buddy class loading, as described in Context Class Loader Enhancements. I'd suggest to add Eclipse-BuddyPolicy: registered. Then, the issue above is ...