Error

net.dv8tion.jda.api.exceptions.HierarchyException: Can't modify a member with higher or equal highest role than yourself!
	at net.dv8tion.jda.internal.entities.GuildImpl.checkPosition(GuildImpl.java:1221)
	at net.dv8tion.jda.internal.entities.GuildImpl.modifyNickname(GuildImpl.java:817)
	at net.dv8tion.jda.api.entities.Member.modifyNickname(Member.java:556)
	at com.darkscientist.elysionpolice.discordbot.utils.PromoteUtils.setName(PromoteUtils.java:42)
	at com.darkscientist.elysionpolice.discordbot.commands.RenameCommand.execute(RenameCommand.java:42)
	at com.jagrosh.jdautilities.command.Command.run(Command.java:325)
	at com.jagrosh.jdautilities.command.impl.CommandClientImpl.onMessageReceived(CommandClientImpl.java:557)
	at com.jagrosh.jdautilities.command.impl.CommandClientImpl.onEvent(CommandClientImpl.java:440)
	at net.dv8tion.jda.api.hooks.InterfacedEventManager.handle(InterfacedEventManager.java:96)
	at net.dv8tion.jda.internal.hooks.EventManagerProxy.handle(EventManagerProxy.java:64)
	at net.dv8tion.jda.internal.JDAImpl.handleEvent(JDAImpl.java:148)
	at net.dv8tion.jda.internal.handle.MessageCreateHandler.handleInternally(MessageCreateHandler.java:122)
	at net.dv8tion.jda.internal.handle.SocketHandler.handle(SocketHandler.java:37)
	at net.dv8tion.jda.internal.requests.WebSocketClient.onDispatch(WebSocketClient.java:838)
	at net.dv8tion.jda.internal.requests.WebSocketClient.onEvent(WebSocketClient.java:737)
	at net.dv8tion.jda.internal.requests.WebSocketClient.handleEvent(WebSocketClient.java:716)
	at net.dv8tion.jda.internal.requests.WebSocketClient.onBinaryMessage(WebSocketClient.java:876)
	at com.neovisionaries.ws.client.ListenerManager.callOnBinaryMessage(ListenerManager.java:368)
	at com.neovisionaries.ws.client.ReadingThread.callOnBinaryMessage(ReadingThread.java:270)
	at com.neovisionaries.ws.client.ReadingThread.handleBinaryFrame(ReadingThread.java:990)
	at com.neovisionaries.ws.client.ReadingThread.handleFrame(ReadingThread.java:749)
	at com.neovisionaries.ws.client.ReadingThread.main(ReadingThread.java:108)
	at com.neovisionaries.ws.client.ReadingThread.runMain(ReadingThread.java:64)
	at com.neovisionaries.ws.client.WebSocketThread.run(WebSocketThread.java:45)