openfire：openfireサーバーを起動できません

openfire3.10をダウンロードしました。インストールは正しく行われました。しかし、Openfireサーバーを起動すると、起動中に次のエラーが発生しました。

java.lang.IllegalArgumentException: Illegal JID: chintan_pE
crror starting the server. Please check the log files for more information.

    at org.xmpp.packet.JID.<init>(JID.java:542)
    at org.xmpp.packet.JID.<init>(JID.java:483)
    at org.xmpp.packet.JID.<init>(JID.java:464)
    at org.jivesoftware.openfire.SessionManager.initialize(SessionManager.java:1349)
    at org.jivesoftware.openfire.XMPPServer.initModules(XMPPServer.java:618)
    at org.jivesoftware.openfire.XMPPServer.start(XMPPServer.java:504)
    at org.jivesoftware.openfire.XMPPServer.<init>(XMPPServer.java:216)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.jivesoftware.openfire.starter.ServerStarter.start(ServerStarter.java:105)
    at org.jivesoftware.openfire.starter.ServerStarter.main(ServerStarter.java:56)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
    at com.exe4j.runtime.WinLauncher.main(Unknown Source)
    at com.install4j.runtime.launcher.WinLauncher.main(Unknown Source)
Caused by: java.lang.IllegalArgumentException: The input is not a valid JID domain part: chintan_pc
    at org.xmpp.packet.JID.domainprep(JID.java:344)
    at org.xmpp.packet.JID.<init>(JID.java:530)
    ... 20 more
Caused by: gnu.inet.encoding.IDNAException: Contains non-LDH characters.
    at gnu.inet.encoding.IDNA.toASCII(IDNA.java:118)
    at gnu.inet.encoding.IDNA.toASCII(IDNA.java:64)
    at org.xmpp.packet.JID.domainprep(JID.java:330)
    ... 21 more
java.util.ConcurrentModificationException
    at java.util.LinkedHashMap$LinkedHashIterator.nextEntry(Unknown Source)
    at java.util.LinkedHashMap$ValueIterator.next(Unknown Source)
    at org.jivesoftware.openfire.XMPPServer.initModules(XMPPServer.java:615)
    at org.jivesoftware.openfire.XMPPServer.start(XMPPServer.java:504)
    at org.jivesoftware.openfire.XMPPServer.<init>(XMPPServer.java:216)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.jivesoftware.openfire.starter.ServerStarter.start(ServerStarter.java:105)
    at org.jivesoftware.openfire.starter.ServerStarter.main(ServerStarter.java:56)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.exe4j.runtime.LauncherEngine.launch(Unknown Source)
    at com.exe4j.runtime.WinLauncher.main(Unknown Source)
    at com.install4j.runtime.launcher.WinLauncher.main(Unknown Source)
Server halted

PS：管理者権限で起動しています（右クリック> [管理者として実行]）。私はWindows8.1 Pro64ビットを使用しています。もう少しインストールが足りませんか？