Mon laucher FTB bug

Bonjour tous le monde ,comme le titre l'indique ,mon laucher FTB a un bug avec cette phrase:
- "Minecraft authentification servers might be down. Check @ Help.Mojang.com"

Je sais que le problème a déjà était posé sur le furoms mais j'ai essayé tous ce qui a était dit et rien ne marche
pourtant j'ai tous suivi à la lettre.

-Je suis sous Windows 10
-Java 7 64bit

voici ce que m'affiche la console:

"AnalyticsBackgroundThread started
FTBLaunch starting up (version 1.4.8 Build: 10408)
OS: Windows 8.1 6.3 (64-bit)
Launcher Install Dir: C:\Users\Damien Gamer\Desktop\Feed The Beast/yolo
System memory: 5717M free, 8077M total
The FTB Launcher has found the following Java versions installed:
Java Version: 1.7.0_80 sorted as: 1.7.0_80 64 Bit Java at : C:\Program Files\Java\jre7\bin\java.exe
Java Version: 1.7.0_80 sorted as: 1.7.0_80 64 Bit Java at : C:\Windows\system32\java.exe
Java Version: 1.7.0_80 sorted as: 1.7.0_80 64 Bit Java at : C:\Program Files\Java\jre7\bin\java.exe
Preferred: Java Version: 1.7.0_80 sorted as: 1.7.0_80 64 Bit Java at : C:\Program Files\Java\jre7\bin\java.exe
Using Java path entered by user: C:\Program Files\Java\jre7\bin\java.exe
[i18n] Fallback enUS loaded
[i18n] enUS English (US) language file loaded!
Checking installation location
Loading user data
Password is now encrypted with new key
Converted password will be saved to disk after successful login
Failed to load modpacks, loading from backup: java.net.UnknownHostException: ftb.cursecdn.com
Failed to load modpacks, loading from backup: java.net.UnknownHostException: ftb.cursecdn.com
Loading modpack information for thirdparty.xml...
Loading modpack information for modpacks.xml...
Primary mirror failed, Trying alternative mirrors
CreeperHost Server: Nottingham was not accessible, ignoring.england2.creeperrepo.net
CreeperHost Server: Grantham was not accessible, ignoring.england3.creeperrepo.net
CreeperHost Server: Los Angeles was not accessible, ignoring.losangeles1.creeperrepo.net
Creating Console window
Creating main window
[i18n] Added 0 enUS to options pane
[i18n] Added 1 cyGB to options pane
[i18n] Added 2 daDK to options pane
[i18n] Added 3 deDE to options pane
[i18n] Added 4 enGB to options pane
[i18n] Added 5 enUS to options pane
[i18n] Added 6 esES to options pane
[i18n] Added 7 fiFI to options pane
[i18n] Added 8 frCA to options pane
[i18n] Added 9 frFR to options pane
[i18n] Added 10 itIT to options pane
[i18n] Added 11 maHU to options pane
[i18n] Added 12 nlNL to options pane
[i18n] Added 13 noNO to options pane
[i18n] Added 14 plPL to options pane
[i18n] Added 15 ptBR to options pane
[i18n] Added 17 ruRU to options pane
[i18n] Added 16 ptPT to options pane
[i18n] Added 19 zhCN to options pane
[i18n] Added 18 svSE to options pane
[i18n] enUS English (US) language file loaded!
CreeperHost Server: Atlanta was not accessible, ignoring.atlanta1.creeperrepo.net
loading texture pack information...
loading map information...
Error while updating map info: java.net.UnknownHostException: ftb.cursecdn.com
Error loading texture pack info: java.net.UnknownHostException: ftb.cursecdn.com
Setting up Launcher
Opening main window
Downloading pack data
Error while loading launcher update info: java.net.UnknownHostException: ftb.cursecdn.com
Authlib checksum download failed: java.net.UnknownHostException: libraries.minecraft.net
Authlib Download Failed
Local Authlib copy exists: trying to load it anyway
Adding Authlib to Classpath
News download failed: java.net.UnknownHostException: forum.feed-the-beast.com
CreeperHost Server: Atlanta-2 was not accessible, ignoring.atlanta2.creeperrepo.net
CreeperHost Server: Maidenhead was not accessible, ignoring.england1.creeperrepo.net
Curse Server: CurseCDN was not accessible, ignoring.ftb.cursecdn.com
Could not find any working mirrors! If you are running a software firewall please allow the FTB Launcher permission to use the internet.
Failed to resolve selected mirror: ftb.cursecdn.com
Using download server Automatic:UNKNOWN on host UNKNOWN (UNKNOWN)
Logging in...
Beginning authlib authentication attempt
successfully created YggdrasilAuthenticationService
Minecraft authentication servers might be down. Check @ help.mojang.com"

Merci de m'aidé

 

J'ai déjà essayé mais ça ne marche pas (pas encore d'antivirus et le pare-feu Windows et désactiver)