C:\Users\elmat\Desktop>Java -jar indbuildcraft.exe
17:30:11.311 [JavaFX Application Thread] ERROR indbuildcraft.gui.LoginWindow - !!ERROR!!
java.io.IOException: Server returned HTTP response code: 500 for URL: http://indbuildcraft.pl/launcher/launcher.php
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[?:1.8.0_121]
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.8.0_121]
        at indbuildcraft.other.autoPatcher.get(autoPatcher.java:93) ~[indbuildcraft.exe:]
        at indbuildcraft.other.autoPatcher.update(autoPatcher.java:43) ~[indbuildcraft.exe:]
        at indbuildcraft.gui.LoginWindow.start(LoginWindow.java:24) ~[indbuildcraft.exe:]
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863) ~[jfxrt.jar:?]
        at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326) ~[jfxrt.jar:?]
        at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295) ~[jfxrt.jar:?]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_121]
        at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294) ~[jfxrt.jar:?]
        at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) ~[jfxrt.jar:?]
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) ~[jfxrt.jar:?]
        at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191) ~[jfxrt.jar:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]