[11:36:48] [Thread-104/WARN]: Exception in thread "Thread-104" java.lang.NullPointerException: Nodes must be provided.
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.nodes.NodeTuple.(NodeTuple.java:28)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.representer.BaseRepresenter.representMapping(BaseRepresenter.java:163)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentMap.representData(SafeRepresenter.java:314)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:94)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.representer.BaseRepresenter.represent(BaseRepresenter.java:64)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:297)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:261)
[11:36:48] [Thread-104/WARN]: at org.yaml.snakeyaml.Yaml.dump(Yaml.java:236)
[11:36:48] [Thread-104/WARN]: at io.github.wysohn.triggerreactor.misc.CopyYamlConfiguration.saveToString(CopyYamlConfiguration.java:56)
[11:36:48] [Thread-104/WARN]: at io.github.wysohn.triggerreactor.bukkit.manager.VariableManager$1.run(VariableManager.java:76)
[11:36:48] [Thread-104/WARN]: at java.lang.Thread.run(Unknown Source)