[1.12] Stops loading right after clicking launch

[Bridol]

I've been struggeling with this issue for a few hours now.

At first I was having an issue with the installment where the libraries-files would not download. Fixed that issue trough an older thread, but now when I click the launch button, the loading sequence stops. I tried turning off the loading screen with no luck, the loading sequence stops and the window enters a "not responding" stage. 

 

This is the latest output log:

Spoiler

01:25:37	launcher	Preparing to launch minecraft client for 1.12-forge1.12-14.21.1.2387
01:25:38	launcher	Couldn't get hash for jline/jline/2.13/jline-2.13.jar from http://files.minecraftforge.net/maven/jline/jline/2.13/jline-2.13.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for com/typesafe/config/1.2.1/config-1.2.1.jar from http://files.minecraftforge.net/maven/com/typesafe/config/1.2.1/config-1.2.1.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for net/minecraftforge/forge/1.12-14.21.1.2387/forge-1.12-14.21.1.2387.jar from http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.12-14.21.1.2387/forge-1.12-14.21.1.2387.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\net/minecraftforge/forge/1.12-14.21.1.2387/forge-1.12-14.21.1.2387.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Couldn't get hash for com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar from http://files.minecraftforge.net/maven/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\jline/jline/2.13/jline-2.13.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\com/typesafe/config/1.2.1/config-1.2.1.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Couldn't get hash for org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar from http://files.minecraftforge.net/maven/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Couldn't get hash for org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar from http://files.minecraftforge.net/maven/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Couldn't get hash for org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar from http://files.minecraftforge.net/maven/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar.sha1: HTTP 404: Not Found
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\libraries\org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Couldn't get hash for 1.12 jar from https://s3.amazonaws.com/Minecraft.Download/versions/1.12/1.12.jar.sha1: HTTP 403: Forbidden
01:25:38	launcher	Have local file C:/Users\August\AppData\Roaming\.minecraft\versions\1.12/1.12.jar but don't know what size or hash it should be. Have to assume it's good.
01:25:38	launcher	Checking installations.
01:25:38	launcher	Minecraft client 1.12-forge1.12-14.21.1.2387 is ready to start.
01:25:38	launcher	Starting!
01:25:38	launcher	Version does not support log configuration, will assume one plaintext entry per line
02:25:39	game	2017-12-03 01:25:39,378 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
02:25:39	game	2017-12-03 01:25:39,381 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
02:25:39	game	[01:25:39] [main/INFO] [FML]: Forge Mod Loader version 14.21.1.2387 for Minecraft 1.12 loading
02:25:39	game	[01:25:39] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
02:25:39	game	[01:25:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
02:25:40	game	2017-12-03 01:25:40,293 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
02:25:40	game	2017-12-03 01:25:40,302 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
02:25:40	game	2017-12-03 01:25:40,304 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
02:25:40	game	[01:25:40] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
02:25:41	game	[01:25:41] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
02:25:41	game	[01:25:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
02:25:41	game	[01:25:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
02:25:41	game	[01:25:41] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
02:25:41	game	[01:25:41] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
02:25:41	game	[01:25:41] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.client.main.Main}
02:25:41	game	[01:25:41] [main/INFO]: Setting user: Bridol