25n0

So I tried installing 1.9 forge & I have already played on 1.9 but when ever I try installing forge 1.9 a text file appears saying Exception in thread "main" java.lang.ExceptionInInitializerError at net.minecraftforge.installer.ClientInstall.getSponsorMessage(ClientInstall.java:326) at net.minecraftforge.installer.InstallerAction.getSponsorMessage(InstallerAction.java:59) at net.minecraftforge.installer.InstallerPanel.updateFilePath(InstallerPanel.java:236) at net.minecraftforge.installer.InstallerPanel.<init>(InstallerPanel.java:217) at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:153) at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:40) Caused by: java.lang.ArrayIndexOutOfBoundsException: 1 at net.minecraftforge.installer.MirrorData.buildMirrorList(MirrorData.java:84) at net.minecraftforge.installer.MirrorData.<init>(MirrorData.java:63) at net.minecraftforge.installer.MirrorData.<clinit>(MirrorData.java:17) ... 6 more Can someone help me?