Having Issues With PowerRanks

Hi. I recently created a minecraft bukkit server and downloaded PowerRanks as one of the plugins. I created some custom ranks (two had chat colors; I think this is the problem) and when I tried giving myself the ranks (in-game and in the players file) the only thing that happened was the triangle brackets were removed from my username in the chat. When I tried adding chat colors to Admin and Owner rank (I was just trying everything at this point) and I ran the server, this happened.

[18:52:19 WARN]: at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:55)
[18:52:19 WARN]: at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:162)
[18:52:19 WARN]: at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:130)
[18:52:19 WARN]: at me.winspeednl.PowerRanks.Data.Users.setGroup(Users.java:34)
[18:52:19 WARN]: at me.winspeednl.PowerRanks.Commands.Cmd.onCommand(Cmd.java:78)
[18:52:19 WARN]: at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
[18:52:19 WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:140)
[18:52:19 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:631)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.PlayerConnection.handleCommand(PlayerConnection.java:1327)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1187)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(SourceFile:37)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.PacketPlayInChat.a(SourceFile:9)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13)
[18:52:19 WARN]: at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
[18:52:19 WARN]: at java.util.concurrent.FutureTask.run(Unknown Source)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:696)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:371)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:651)
[18:52:19 WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:555)
[18:52:19 WARN]: at java.lang.Thread.run(Unknown Source)
[18:52:19 WARN]: Caused by: mapping values are not allowed here
in 'string', line 25, column 30:
chatColor: c nameColor: RESET
^

The server still worked fine, nothing changed with the ranks though.

I would really like to have some custom ranks on my server (chat colors would be awesome too) so if anyone has any suggestions on how to fix this (or if I should just ditch PowerRanks ), please post them here. Thanks!