whenever I try to open minecraft through the twitch launcher to play mod packs it instantly crashes, ive spent a lot of time searching up how to fix it and nothing has really worked. 

the game output says 

 

22:54:46.407

Preparing to launch minecraft client for forge-14.23.5.2838

22:54:46.409

Prepared asset index

22:54:46.443

Have 1347 total files to check or download

22:54:46.448

Waiting for 1347 futures

22:54:46.950

Couldn't fetch SHA1 checksum for https://s3.amazonaws.com/Minecraft.Download/versions/1.12.2/1.12.2.jar

22:54:46.953

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\versions\1.12.2\1.12.2.jar but don't know what size or hash it should be. Have to assume it's good.

22:54:47.006

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/net/minecraftforge/forge/1.12.2-14.23.5.2838/forge-1.12.2-14.23.5.2838.jar

22:54:47.008

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\libraries\net\minecraftforge\forge\1.12.2-14.23.5.2838\forge-1.12.2-14.23.5.2838.jar but don't know what size or hash it should be. Have to assume it's good.

22:54:47.107

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/jline/jline/3.5.1/jline-3.5.1.jar

22:54:47.109

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\libraries\org\jline\jline\3.5.1\jline-3.5.1.jar but don't know what size or hash it should be. Have to assume it's good.

22:54:47.141

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/ow2/asm/asm-all/5.2/asm-all-5.2.jar

22:54:47.143

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\libraries\org\ow2\asm\asm-all\5.2\asm-all-5.2.jar but don't know what size or hash it should be. Have to assume it's good.

22:54:47.387

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar

22:54:47.389

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.389

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar

22:54:47.390

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.462

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar

22:54:47.463

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.471

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar

22:54:47.471

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar

22:54:47.473

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.698

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar

22:54:47.699

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.714

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/com/typesafe/config/1.2.1/config-1.2.1.jar

22:54:47.715

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.810

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar

22:54:47.812

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:47.843

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar

22:54:47.845

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:48.055

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar

22:54:48.056

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:48.083

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar

22:54:48.085

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:48.347

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar

22:54:48.349

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\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.

22:54:48.454

Couldn't fetch SHA1 checksum for https://modloaders.forgecdn.net/647622546/maven/org/apache/maven/maven-artifact/3.5.3/maven-artifact-3.5.3.jar

22:54:48.455

Have local file C:\Users\jjcoo\OneDrive\Documents\Curse\Minecraft\Install\libraries\org\apache\maven\maven-artifact\3.5.3\maven-artifact-3.5.3.jar but don't know what size or hash it should be. Have to assume it's good.

22:54:48.556

Checking installations.

22:54:48.557

Minecraft client forge-14.23.5.2838 is ready to start.

22:54:48.557

Starting!

22:54:48.557

Nothing to download!

22:54:48.557

Extracting 3 files!

22:54:49.183

Using default game log configuration client-1.12.xml (outputs XML)

22:54:49.183

Installing versions!

22:54:49.780

Error: Could not find or load main class \ Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=256m; support was removed in 8.0

22:54:49.780

Process crashed with exit code 1

 

If anyone could please help that would be amazing

im trying to play a sky factory 4 mod pack by darkosto on the twitch launcher if that helps at all