Server not starting

[xelarewolf]

When I go into my server settings to change the IP address to my public IP address to let my friends join, I am met with this error and the server doesn't start up :

 

 G:\Modded Server>java -Xmx8000M -Xms8000M -jar forge.jar nogui
2020-04-23 20:53:19,903 main WARN Advanced terminal features are not available in this environment
[32m[20:53:20] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 31.1.0, --fml.mcpVersion, 20200122.131323, --fml.mcVersion, 1.15.2, --fml.forgeGroup, net.minecraftforge, nogui]
[m[32m[20:53:20] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 5.0.0-milestone.4+67+b1a340b starting: java version 1.8.0_211 by Oracle Corporation
[m[32m[20:53:20] [main/INFO] [ne.mi.fm.lo.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[m[32m[20:53:21] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlserver' with arguments [--gameDir, ., nogui]
[m[33m[20:53:29] [main/WARN] [minecraft/Commands]: Ambiguity between arguments [teleport, destination] and [teleport, targets] with inputs: [Player, 0123, @e, dd12be42-52a9-4a91-a8a1-11c01849e498]
[m[33m[20:53:29] [main/WARN] [minecraft/Commands]: Ambiguity between arguments [teleport, location] and [teleport, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
[m[33m[20:53:29] [main/WARN] [minecraft/Commands]: Ambiguity between arguments [teleport, location] and [teleport, targets] with inputs: [0.1 -0.5 .9, 0 0 0]
[m[33m[20:53:29] [main/WARN] [minecraft/Commands]: Ambiguity between arguments [teleport, targets] and [teleport, destination] with inputs: [Player, 0123, dd12be42-52a9-4a91-a8a1-11c01849e498]
[m[33m[20:53:29] [main/WARN] [minecraft/Commands]: Ambiguity between arguments [teleport, targets, location] and [teleport, targets, destination] with inputs: [0.1 -0.5 .9, 0 0 0]
[m[32m[20:53:29] [Server thread/INFO] [minecraft/DedicatedServer]: Starting minecraft server version 1.15.2
[m[32m[20:53:30] [modloading-worker-1/INFO] [ne.mi.co.ForgeMod/FORGEMOD]: Forge mod loading, version 31.1.0, for MC 1.15.2 with MCP 20200122.131323
[m[32m[20:53:30] [modloading-worker-1/INFO] [ne.mi.co.MinecraftForge/FORGE]: MinecraftForge v31.1.0 Initialized
[m[32m[20:53:30] [Server thread/INFO] [minecraft/DedicatedServer]: Loading properties
[m[32m[20:53:30] [Server thread/INFO] [minecraft/DedicatedServer]: Default game type: SURVIVAL
[m[32m[20:53:30] [Server thread/INFO] [minecraft/DedicatedServer]: Generating keypair
[m[32m[20:53:30] [Forge Version Check/INFO] [ne.mi.fm.VersionChecker/]: [forge] Starting version check at https://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json
[m[32m[20:53:31] [Server thread/INFO] [minecraft/DedicatedServer]: Starting Minecraft server on *MY IP ADDRESS*
[m[32m[20:53:31] [Server thread/INFO] [minecraft/NetworkSystem]: Using default channel type
[m[32m[20:53:32] [Forge Version Check/INFO] [ne.mi.fm.VersionChecker/]: [forge] Found status: UP_TO_DATE Current: 31.1.0 Target: null
[m[33m[20:53:32] [Server thread/WARN] [minecraft/DedicatedServer]: **** FAILED TO BIND TO PORT!
[m[33m[20:53:32] [Server thread/WARN] [minecraft/DedicatedServer]: The exception was: java.net.BindException: Cannot assign requested address: bind
[m[33m[20:53:32] [Server thread/WARN] [minecraft/DedicatedServer]: Perhaps a server is already running on that port?
[m[32m[20:53:32] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server
[m[32m[20:53:32] [Server thread/INFO] [minecraft/MinecraftServer]: Saving worlds
[m[1;31m[20:53:32] [Server thread/ERROR] [minecraft/MinecraftServer]: Exception stopping the server
java.lang.IllegalArgumentException: Can not hotload overworld. This must be loaded at all times by main Server.
        at org.apache.commons.lang3.Validate.isTrue(Validate.java:158) ~[server-1.15.2-extra.jar:?] {}
        at net.minecraftforge.common.DimensionManager.initWorld(DimensionManager.java:229) ~[?:?] {re:classloading}
        at net.minecraftforge.common.DimensionManager.getWorld(DimensionManager.java:198) ~[?:?] {re:classloading}
        at net.minecraft.server.MinecraftServer.func_71218_a(MinecraftServer.java:1002) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_213211_a(MinecraftServer.java:534) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at net.minecraft.server.MinecraftServer.func_71260_j(MinecraftServer.java:566) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at net.minecraft.server.dedicated.DedicatedServer.func_71260_j(DedicatedServer.java:549) ~[?:?] {re:classloading,pl:accesstransformer:B}
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:674) [?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211] {}
[m

 

The server starts up and is join able if I don't put my public IP address as the the sever's IP, but then my friends wouldn't be able to join me

(ps I'm using an airport extreme for my port forwarding would it be possible that is where my problem is because I have a hunch that might be it.)

Edited April 24, 2020 by xelarewolf

[DaemonUmbra]

  On 4/24/2020 at 2:03 AM, xelarewolf said:

[m[33m[20:53:32] [Server thread/WARN] [minecraft/DedicatedServer]: **** FAILED TO BIND TO PORT!
[m[33m[20:53:32] [Server thread/WARN] [minecraft/DedicatedServer]: The exception was: java.net.BindException: Cannot assign requested address: bind
[m[33m[20:53:32] [Server thread/WARN] [minecraft/DedicatedServer]: Perhaps a server is already running on that port?

Expand  

Are you already running a server?