为什么成功开启一次，后面改了一下MOD就无法启动了？？

a314292251

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[16:22:39 INFO]: Using 2 threads for Netty based IO
[16:22:39 INFO]: Server Ping Player Sample Count: 12
[16:22:39 INFO]: Generating keypair

[16:22:39 INFO]: Starting Minecraft server on *:25565
[16:22:40 WARN]: **** FAILED TO BIND TO PORT!
[16:22:40 WARN]: The exception was: java.net.BindException: Address already in use: bind
[16:22:40 WARN]: Perhaps a server is already running on that port?
[16:22:40 WARN]: Can't revert to frozen GameData state without freezing first.
[16:22:40 INFO]: Applying holder lookups
[16:22:40 INFO]: Holder lookups applied

[16:22:40 INFO]: The state engine was in incorrect state POSTINITIALIZATION and forced into state SERVER_STOPPED. Errors may have been discarded.
[控制台] 服务器已停止

1534408789

HI,您好

请问您使用的是什么产品？