자, 포트번호 25565(기본)  입력합시다.
[19:35:42 INFO]: This server is running KCauldron version 1.7.10-R0.1-SNAPSHOT (MC: 1.7.10) (Implementing API version 1.7.10-R0.1-SNAPSHOT)
[19:35:43 INFO]: Using 4 threads for Netty based IO
[19:35:43 INFO]: Server Ping Player Sample Count: 12
[19:35:43 INFO]: Generating keypair
[19:35:43 INFO]: Starting Minecraft server on 110.15.54.247:25565
[19:35:43 WARN]: **** FAILED TO BIND TO PORT!
[19:35:43 WARN]: The exception was: java.net.BindException: Cannot assign requested address: bind
[19:35:43 WARN]: Perhaps a server is already running on that port?
[19:35:43 WARN]: Can't revert to frozen GameData state without freezing first.
[19:35:43 INFO]: Applying holder lookups
[19:35:43 INFO]: Holder lookups applied
[19:35:43 INFO]: The state engine was in incorrect state POSTINITIALIZATION and forced into state SERVER_STOPPED. Errors may have been discarded.
계속하려면 아무 키나 누르십시오 . . .

이번엔 ip 빼고!
.
.
하면 잘 됩니다. 
[19:48:06 INFO]: Server permissions file permissions.yml is empty, ignoring it
[19:48:06 INFO]: Done (2.870s)! For help, type "help" or "?"
근데 끝에
[19:49:36 INFO]: Done (5.348s)! For help, type "help" or "?"
[19:49:36 INFO]: Registered command forge with permission node net.minecraftforge.server.command.ForgeCommand
[19:49:43 WARN]: Error occured during retriving version
java.lang.Throwable
        at kcauldron.KLog.log(KLog.java:30) [KLog.class:1.7.10-R0.1-SNAPSHOT]
        at kcauldron.KLog.warning(KLog.java:41) [KLog.class:1.7.10-R0.1-SNAPSHOT]
        at kcauldron.updater.KVersionRetriever.uncaughtException(KVersionRetriever.java:114) [KVersionRetriever.class:1.7.10-R0.1-SNAPSHOT]
        at kcauldron.updater.KVersionRetriever.check(KVersionRetriever.java:108) [KVersionRetriever.class:1.7.10-R0.1-SNAPSHOT]
        at kcauldron.updater.KVersionRetriever.run(KVersionRetriever.java:69) [KVersionRetriever.class:1.7.10-R0.1-SNAPSHOT]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_161]
Caused by: javax.net.ssl.SSLPeerUnverifiedException: Host name 'api.prok.pw' does not match the certificate subject provided by the peer (CN=mirror.aur.rocks)
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.verifyHostname(SSLConnectionSocketFactory.java:465) ~[SSLConnectionSocketFactory.class:4.4.1]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:395) ~[SSLConnectionSocketFactory.class:4.4.1]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353) ~[SSLConnectionSocketFactory.class:4.4.1]
        at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134) ~[DefaultHttpClientConnectionOperator.class:4.4.1]
        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353) ~[PoolingHttpClientConnectionManager.class:4.4.1]
        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380) ~[MainClientExec.class:4.4.1]
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[MainClientExec.class:4.4.1]
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184) ~[ProtocolExec.class:4.4.1]
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88) ~[RetryExec.class:4.4.1]
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[RedirectExec.class:4.4.1]
        at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184) ~[InternalHttpClient.class:4.4.1]
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82) ~[CloseableHttpClient.class:4.4.1]
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107) ~[CloseableHttpClient.class:4.4.1]
        at kcauldron.updater.KVersionRetriever.check(KVersionRetriever.java:92) ~[KVersionRetriever.class:1.7.10-R0.1-SNAPSHOT]
        ... 2 more
이것이  뜹니다.
문제잠을 알려주세요...ㅠㅠ