logs/fml-client-latest кидает ошибки, мб поможет:
[15:25:32] [Client thread/TRACE] [bt/bt]: Sending event FMLInitializationEvent to mod bt
[15:25:32] [Client thread/TRACE] [bt/bt]: Sent event FMLInitializationEvent to mod bt
[15:25:32] [Client thread/DEBUG] [FML/]: Bar Step: Initialization - NotEnoughThaumcraftTabs took 0.001s
[15:25:32] [Client thread/TRACE] [opframe/opframe]: Sending event FMLInitializationEvent to mod opframe
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: java.net.SocketTimeoutException: Read timed out
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.net.SocketInputStream.socketRead0(Native Method)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.net.SocketInputStream.read(SocketInputStream.java:171)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.net.SocketInputStream.read(SocketInputStream.java:141)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:475)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketInputRecord.readFully(SSLSocketInputRecord.java:458)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketInputRecord.decodeInputRecord(SSLSocketInputRecord.java:242)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:180)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLTransport.decode(SSLTransport.java:110)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1290)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1199)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:401)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:373)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:587)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:197)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1570)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.http.HttpURLConnection.access$200(HttpURLConnection.java:92)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1490)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.http.HttpURLConnection$9.run(HttpURLConnection.java:1488)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.security.AccessController.doPrivileged(Native Method)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.security.AccessController.doPrivilegedWithCombiner(AccessController.java:784)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1487)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:268)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at ru.bestfoxy.cubixmainmenu.common.utils.HttpRequest.getRequest(Unknown Source)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at ru.bestfoxy.cubixmainmenu.common.utils.HttpRequest.<init>(Unknown Source)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at ru.bestfoxy.cubixmainmenu.client.gui.mainmenu.GuiCubixMainMenu.lambda$checkVerificationPlayer$3(Unknown Source)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[15:25:34] [pool-3-thread-1/INFO] [STDERR/bfcore]: [java.lang.Throwable$WrappedPrintStream:println:749]: at java.lang.Thread.run(Thread.java:748)