Erreur Ressouce Pack

[Electi_]

Bonjour/bonsoir, il se trouve que déjà quand je lance mon launcher, des erreurs apparaissent :

02:38:23    game    If on Windows, make sure to provide all of the necessary dll's as specified in the twitchsdk README. Also, make sure to set the PATH environment variable to point to the directory containing the dll's.
  <log4j:Event logger="ave" timestamp="1512866303703" level="ERROR" thread="Client thread">
    <log4j:Message><![CDATA[Couldn't initialize twitch stream]]></log4j:Message>
  </log4j:Event>
02:38:23    monitor    expected <

Puis quand j'accepte d'installer un ressoures pack d'un serveur mon minecraft crash et voici l'erreur :

Reported exception thrown!
e: Updating screen events
    at ave.s(SourceFile:1508)
    at ave.av(SourceFile:889)
    at ave.a(SourceFile:325)
    at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: java.lang.IllegalArgumentException: Parameter 'directory' is not a directory
    at org.apache.commons.io.FileUtils.validateListFilesParameters(FileUtils.java:545)
    at org.apache.commons.io.FileUtils.listFiles(FileUtils.java:521)
    at bnm.i(SourceFile:222)
    at bnm.a(SourceFile:188)
    at bcy$3$1.a(SourceFile:1233)
    at awy.a(SourceFile:50)
    at axu.a(SourceFile:350)
    at axu.k(SourceFile:413)
    at axu.p(SourceFile:390)
    at ave.s(SourceFile:1498)
    ... 3 more

Merci de votre aide.