[19:56:12] [Server thread/WARN]: Could not lookup user uuid for ComanderMarc
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:69) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) [minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:58) [minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:349) [minecraft_server.1.7.8.jar:?]
	at ls.aE(SourceFile:472) [minecraft_server.1.7.8.jar:?]
	at ls.e(SourceFile:153) [minecraft_server.1.7.8.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:339) [minecraft_server.1.7.8.jar:?]
	at li.run(SourceFile:628) [minecraft_server.1.7.8.jar:?]
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.readFully(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.AppInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.fill(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:83) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:52) ~[minecraft_server.1.7.8.jar:?]
	... 7 more
[19:56:12] [Server thread/ERROR]: Conversion failed, please try again later
og: Could not request user ComanderMarc from backend systems
	at oe.onProfileLookupFailed(SourceFile:322) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:90) ~[minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:58) ~[minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:349) [minecraft_server.1.7.8.jar:?]
	at ls.aE(SourceFile:472) [minecraft_server.1.7.8.jar:?]
	at ls.e(SourceFile:153) [minecraft_server.1.7.8.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:339) [minecraft_server.1.7.8.jar:?]
	at li.run(SourceFile:628) [minecraft_server.1.7.8.jar:?]
Caused by: com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:69) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) ~[minecraft_server.1.7.8.jar:?]
	... 6 more
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.readFully(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.AppInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.fill(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:83) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:52) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) ~[minecraft_server.1.7.8.jar:?]
	... 6 more
[19:56:12] [Server thread/WARN]: Encountered a problem while converting the player save files, retrying in a few seconds
[19:57:16] [Server thread/WARN]: Could not lookup user uuid for ComanderMarc
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:69) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) [minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:58) [minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:349) [minecraft_server.1.7.8.jar:?]
	at ls.aE(SourceFile:472) [minecraft_server.1.7.8.jar:?]
	at ls.e(SourceFile:153) [minecraft_server.1.7.8.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:339) [minecraft_server.1.7.8.jar:?]
	at li.run(SourceFile:628) [minecraft_server.1.7.8.jar:?]
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.readFully(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.AppInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.fill(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:83) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:52) ~[minecraft_server.1.7.8.jar:?]
	... 7 more
[19:57:16] [Server thread/ERROR]: Conversion failed, please try again later
og: Could not request user ComanderMarc from backend systems
	at oe.onProfileLookupFailed(SourceFile:322) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:90) ~[minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:58) ~[minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:349) [minecraft_server.1.7.8.jar:?]
	at ls.aE(SourceFile:472) [minecraft_server.1.7.8.jar:?]
	at ls.e(SourceFile:153) [minecraft_server.1.7.8.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:339) [minecraft_server.1.7.8.jar:?]
	at li.run(SourceFile:628) [minecraft_server.1.7.8.jar:?]
Caused by: com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:69) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) ~[minecraft_server.1.7.8.jar:?]
	... 6 more
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.readFully(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.AppInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.fill(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:83) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:52) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) ~[minecraft_server.1.7.8.jar:?]
	... 6 more
[19:57:16] [Server thread/WARN]: Encountered a problem while converting the player save files, retrying in a few seconds
[19:58:21] [Server thread/WARN]: Could not lookup user uuid for ComanderMarc
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:69) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) [minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:58) [minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:349) [minecraft_server.1.7.8.jar:?]
	at ls.aE(SourceFile:472) [minecraft_server.1.7.8.jar:?]
	at ls.e(SourceFile:153) [minecraft_server.1.7.8.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:339) [minecraft_server.1.7.8.jar:?]
	at li.run(SourceFile:628) [minecraft_server.1.7.8.jar:?]
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.readFully(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.AppInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.fill(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:83) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:52) ~[minecraft_server.1.7.8.jar:?]
	... 7 more
[19:58:21] [Server thread/ERROR]: Conversion failed, please try again later
og: Could not request user ComanderMarc from backend systems
	at oe.onProfileLookupFailed(SourceFile:322) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:90) ~[minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:58) ~[minecraft_server.1.7.8.jar:?]
	at ny.a(SourceFile:349) [minecraft_server.1.7.8.jar:?]
	at ls.aE(SourceFile:472) [minecraft_server.1.7.8.jar:?]
	at ls.e(SourceFile:153) [minecraft_server.1.7.8.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:339) [minecraft_server.1.7.8.jar:?]
	at li.run(SourceFile:628) [minecraft_server.1.7.8.jar:?]
Caused by: com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:69) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) ~[minecraft_server.1.7.8.jar:?]
	... 6 more
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.net.SocketInputStream.socketRead0(Native Method) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.net.SocketInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.readFully(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.InputRecord.read(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) ~[?:1.7.0_09]
	at sun.security.ssl.AppInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.fill(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read1(Unknown Source) ~[?:1.7.0_09]
	at java.io.BufferedInputStream.read(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.http.HttpClient.parseHTTP(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.7.0_09]
	at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:83) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:52) ~[minecraft_server.1.7.8.jar:?]
	at com.mojang.authlib.yggdrasil.YggdrasilGameProfileRepository.findProfilesByNames(YggdrasilGameProfileRepository.java:45) ~[minecraft_server.1.7.8.jar:?]
	... 6 more
[19:58:21] [Server thread/WARN]: **** DETECTED OLD PLAYER FILES IN THE WORLD SAVE
[19:58:21] [Server thread/WARN]: **** THIS USUALLY HAPPENS WHEN THE AUTOMATIC CONVERSION FAILED IN SOME WAY
[19:58:21] [Server thread/WARN]: ** please restart the server and if the problem persists, remove the directory 'world\players'
[19:58:21] [Server thread/INFO]: Stopping server