I'm using Spigot for 1.8.3 (1.8.3-R0.1-SNAPSHOT), Vault version 1.5.3-b37 and quests version 2.0.0 but all it returns when I do any /quests command is NULL. Please help
TMaterne commented
Never mind, I solved it by re-installing the new versions of vault, quests and citizens. All works now :D