Error occured when analyze invalid IPs

[HaHaWTH]

Environment:
Waterfall-build515
EpicGuard latest
JDK 17.0.5

try to analyze an IP that have not entered the server,and then the following error occured

[01:12:27] [main/INFO]: An internal error occurred whilst

executing this command, please check the console log for details.

[01:12:27] [main/WARN]: Error in dispatching command
java.lang.NullPointerException: Cannot invoke "java.lang.CharSequence.toString()" because "replacement" is null
at java.lang.String.replace(String.java:2959) ~[?:?]
at me.xneox.epicguard.core.command.sub.AnalyzeCommand.execute(AnalyzeCommand.java:61) ~[?:?]
at me.xneox.epicguard.core.command.CommandHandler.handleCommand(CommandHandler.java:70) ~[?:?]
at me.xneox.epicguard.waterfall.BungeeCommandHandler.execute(BungeeCommandHandler.java:37) ~[?:?]
at net.md_5.bungee.api.plugin.PluginManager.dispatchCommand(PluginManager.java:213) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at net.md_5.bungee.api.plugin.PluginManager.dispatchCommand(PluginManager.java:164) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at io.github.waterfallmc.waterfall.console.WaterfallConsole.runCommand(WaterfallConsole.java:30) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at net.minecrell.terminalconsole.SimpleTerminalConsole.processInput(SimpleTerminalConsole.java:87) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at net.minecrell.terminalconsole.SimpleTerminalConsole.readCommands(SimpleTerminalConsole.java:168) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at net.minecrell.terminalconsole.SimpleTerminalConsole.start(SimpleTerminalConsole.java:141) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:72) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]
at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15) ~[waterfall-1.19-515.jar:git:Waterfall-Bootstrap:1.19-R0.1-SNAPSHOT:8a03f3d:515]

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