com.mojang.authlib.exceptions.AuthenticationUnavailableException

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  • com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:71)[launcher.jar:1.6.19] at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logInWithToken(YggdrasilUserAuthentication.java:132)[launcher.jar:1.6.19] at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logIn(YggdrasilUserAuthentication.java:55)[launcher.jar:1.6.19] at net.minecraft.launcher.Launcher.ensureLoggedIn(Launcher.java:215)[launcher.jar:1.6.19] at net.minecraft.launcher.Launcher$2.run(Launcher.java:169)[launcher.jar:1.6.19] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_25] at java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_25] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[?:1.8.0_25] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[?:1.8.0_25] at java.lang.Thread.run(Thread.java:745)[?:1.8.0_25]

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