I open Minecraft, after a while Minecraft breaks and opens the launcher with game output:
2018-04-27 11:02:28,283 main WARN Disabling terminal, you're running in an unsupported environment.
[11:02:28] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[11:02:28] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[11:02:28] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[11:02:28] [main/INFO] [FML]: Forge Mod Loader version 14.23.2.2653 for Minecraft 1.12.2 loading
[11:02:28] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.8.0_161, running on Windows 10:x86:10.0, installed at C:\Program Files\Java\jre1.8.0_161
[11:02:28] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at C:\Users\s\AppData\Roaming\.minecraft for Forge Mod Loader
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:106) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:77) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:40) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:140) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_161]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_161]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_161]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_161]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_161]
at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) ~[forge-1.12.2-14.23.2.2653.jar:?]
... 5 more
Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_161]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_161]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_161]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_161]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_161]
at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) ~[forge-1.12.2-14.23.2.2653.jar:?]
... 5 more
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_161]
at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_161]
at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_161]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_161]
at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_161]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_161]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_161]
at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_161]
at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.2.2653.jar:?]
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) ~[forge-1.12.2-14.23.2.2653.jar:?]
... 5 more
Exception in thread "main" [11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.SecurityManager.checkExit(Unknown Source)
[11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.Runtime.exit(Unknown Source)
[11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.System.exit(Unknown Source)
[11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[11:02:28] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

I use Mods for Minecraft powered by Forge.