[15:08:41] [Craft Scheduler Thread - 30080/WARN]: [AuctionHouse] Plugin AuctionHouse v2.0.8 generated an exception while executing task 15152375
org.yaml.snakeyaml.error.YAMLException: invalid string value has occurred
    at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentString.representData(SafeRepresenter.java:132) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:89) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representSequence(BaseRepresenter.java:134) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentList.representData(SafeRepresenter.java:190) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:95) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representMapping(BaseRepresenter.java:157) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentMap.representData(SafeRepresenter.java:321) ~[patched_1.15.2.jar:git-Paper-348]
    at org.bukkit.configuration.file.YamlRepresenter$RepresentConfigurationSerializable.representData(YamlRepresenter.java:38) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:95) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representMapping(BaseRepresenter.java:157) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentMap.representData(SafeRepresenter.java:321) ~[patched_1.15.2.jar:git-Paper-348]
    at org.bukkit.configuration.file.YamlRepresenter$RepresentConfigurationSerializable.representData(YamlRepresenter.java:38) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:95) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representMapping(BaseRepresenter.java:157) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.SafeRepresenter$RepresentMap.representData(SafeRepresenter.java:321) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.representData(BaseRepresenter.java:95) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.representer.BaseRepresenter.represent(BaseRepresenter.java:65) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:307) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.Yaml.dumpAll(Yaml.java:271) ~[patched_1.15.2.jar:git-Paper-348]
    at org.yaml.snakeyaml.Yaml.dump(Yaml.java:246) ~[patched_1.15.2.jar:git-Paper-348]
    at org.bukkit.configuration.file.YamlConfiguration.saveToString(YamlConfiguration.java:39) ~[patched_1.15.2.jar:git-Paper-348]
    at com.spawnchunk.auctionhouse.storage.DatabaseStorage.createListing(DatabaseStorage.java:95) ~[?:?]
    at com.spawnchunk.auctionhouse.modules.Listings$1.run(Listings.java:452) ~[?:?]
    at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftTask.run(CraftTask.java:99) ~[patched_1.15.2.jar:git-Paper-348]
    at org.bukkit.craftbukkit.v1_15_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.15.2.jar:git-Paper-348]
    at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.15.2.jar:git-Paper-348]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
    at java.lang.Thread.run(Thread.java:834) [?:?]