1. Ваш никнейм, сервер: Ichevskiu
2. Интересующий вас вопрос: Дабы запустить лаунчер использую:

java -jar CubixWorld.jar

Что приводит к этой ошибке:

Exception in thread "main" java.lang.InternalError: java.lang.NoSuchFieldException: no such field: java.lang.ClassLoader.usr_paths/[Ljava.lang.String;/putStatic

at launcher.JllJllILIiIlJLiJJlIiILjiLJIiJill.<clinit>(SourceFile:196)

at launcher.IIJllLiJIILIIJiiLJljjIlILlLjIlji.isValidCertificates(SourceFile:127)

at launcher.IIJllLiJIILIIJiiLJljjIlILlLjIlji.verifyCertificates(SourceFile:375)

at launcher.jjLILjiJlJiLLLLLjJJJiLljLLlljLIl.main(SourceFile:254)

Caused by: java.lang.NoSuchFieldException: no such field: java.lang.ClassLoader.usr_paths/[Ljava.lang.String;/putStatic

at java.base/java.lang.invoke.MemberName.makeAccessException(Unknown Source)

at java.base/java.lang.invoke.MemberName$Factory.resolveOrFail(Unknown Source)

at java.base/java.lang.invoke.MethodHandles$Lookup.resolveOrFail(Unknown Source)

at java.base/java.lang.invoke.MethodHandles$Lookup.findStaticSetter(Unknown Source)

at launcher.JllJllILIiIlJLiJJlIiILjiLJIiJill.<clinit>(SourceFile:183)

... 3 more

Caused by: java.lang.NoSuchFieldError: Class java.lang.ClassLoader does not have member field 'java.lang.String[] usr_paths'

at java.base/java.lang.invoke.MethodHandleNatives.resolve(Native Method)

at java.base/java.lang.invoke.MemberName$Factory.resolve(Unknown Source)

... 7 more