Crash on startup - purpur 1.20.6

[trentnbauer]

Hi, Feeling a little silly, not sure what I'm doing wrong here! I started getting an error after updating my server, so I deleted the config files and re-ran the server and I get this message in the log

I then update the config file to below and restart the server

and I get this error in the log and the plugin does not load

[18:31:06 INFO]: [ViewDistanceTweaks] Enabling ViewDistanceTweaks v1.5.7
[18:31:06 INFO]: [ViewDistanceTweaks] Using PaperSimulationDistanceHook for the simulation distance hook.
[18:31:06 INFO]: [ViewDistanceTweaks] Using PaperViewDistanceHook for the view distance hook.
[18:31:06 INFO]: [ViewDistanceTweaks] Using PaperTickHook for the tick hook.
[18:31:06 ERROR]: Error occurred while enabling ViewDistanceTweaks v1.5.7 (Is it up to date?)
java.lang.NumberFormatException: For input string: "org.bukkit.craftbukkit"
        at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67) ~[?:?]
        at java.base/java.lang.Integer.parseInt(Integer.java:662) ~[?:?]
        at java.base/java.lang.Integer.parseInt(Integer.java:778) ~[?:?]
        at ViewDistanceTweaks-1.5.7.jar/com.froobworld.viewdistancetweaks.util.NmsUtils.getMajorVersion(NmsUtils.java:31) ~[ViewDistanceTweaks-1.5.7.jar:?]
        at ViewDistanceTweaks-1.5.7.jar/com.froobworld.viewdistancetweaks.limiter.ClientViewDistanceManager.init(ClientViewDistanceManager.java:32) ~[ViewDistanceTweaks-1.5.7.jar:?]
        at ViewDistanceTweaks-1.5.7.jar/com.froobworld.viewdistancetweaks.ViewDistanceTweaks.onEnable(ViewDistanceTweaks.java:50) ~[ViewDistanceTweaks-1.5.7.jar:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:287) ~[purpur-api-1.20.6-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:519) ~[purpur-api-1.20.6-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:653) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:565) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:685) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:444) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:358) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1154) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:329) ~[purpur-1.20.6.jar:git-Purpur-2197]
        at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
[18:31:06 INFO]: [ViewDistanceTweaks] Disabling ViewDistanceTweaks v1.5.7

[18:34:51 INFO]: Current: git-Purpur-2197 (MC: 1.20.6)*
Previous: git-Purpur-2196 (MC: 1.20.6)
* You are running the latest version

I have crossposted on Spigotmc