GD TEST39 console errors

[Server thread/WARN]: [GriefDefender] Task #1697 for GriefDefender v2.0.0-DEV generated an exception
com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected a string but was BEGIN_OBJECT at line 1 column 48 path $.timestamp
	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:224) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.Gson.fromJson(Gson.java:887) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.Gson.fromJson(Gson.java:852) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.Gson.fromJson(Gson.java:801) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.Gson.fromJson(Gson.java:773) ~[patched_1.16.5.jar:git-Paper-780]
	at com.griefdefender.configuration.EconomyConfigData.getPaymentTransactions(EconomyConfigData.java:386) ~[?:?]
	at com.griefdefender.configuration.EconomyConfigData.getRentPaymentDueDate(EconomyConfigData.java:247) ~[?:?]
	at com.griefdefender.util.EconomyUtil.getRentPaymentDueDate(EconomyUtil.java:968) ~[?:?]
	at com.griefdefender.task.RentApplyTask.handleClaimRent(RentApplyTask.java:130) ~[?:?]
	at com.griefdefender.task.RentApplyTask.run(RentApplyTask.java:118) ~[?:?]
	at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:100) ~[patched_1.16.5.jar:git-Paper-780]
	at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:468) ~[patched_1.16.5.jar:git-Paper-780]
	at net.minecraft.server.v1_16_R3.MinecraftServer.b(MinecraftServer.java:1427) ~[patched_1.16.5.jar:git-Paper-780]
	at net.minecraft.server.v1_16_R3.DedicatedServer.b(DedicatedServer.java:436) ~[patched_1.16.5.jar:git-Paper-780]
	at net.minecraft.server.v1_16_R3.MinecraftServer.a(MinecraftServer.java:1342) ~[patched_1.16.5.jar:git-Paper-780]
	at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1130) ~[patched_1.16.5.jar:git-Paper-780]
	at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291) ~[patched_1.16.5.jar:git-Paper-780]
	at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: Expected a string but was BEGIN_OBJECT at line 1 column 48 path $.timestamp
	at com.google.gson.stream.JsonReader.nextString(JsonReader.java:825) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:418) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.internal.bind.TypeAdapters$16.read(TypeAdapters.java:406) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:129) ~[patched_1.16.5.jar:git-Paper-780]
	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:220) ~[patched_1.16.5.jar:git-Paper-780]
	... 17 more
[17:13:53] [Server thread/INFO]: LOTTERY POOL → Lottery has been started, /lpl to participate. (LOTTERY DURATION: 15 MINUTES)
[17:14:02] [WorldGuard Region I/O/INFO]: [WorldGuard] Region data changes made in 'elitemobs_northpole' have been background saved
[17:14:02] [WorldGuard Region I/O/INFO]: [WorldGuard] Region data changes made in 'em_sewer_maze' have been background saved