MultiMC version: 0.7.0-4257 Launched instance in offline mode Minecraft folder is: /home/dom/.local/share/multimc/instances/bta.updater.v3.0.mmc/.minecraft Java path is: /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java Checking Java version... Java is version 1.8.0_482, using amd64 architecture, from Private Build. Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz Intel Corporation HD Graphics 620 (rev 02) DeviceName: Onboard IGD Subsystem: Dell HD Graphics 620 OpenGL version string: 4.6 (Compatibility Profile) Mesa 25.2.8-0ubuntu0.24.04.1 Main Class: Native path: /home/dom/.local/share/multimc/instances/bta.updater.v3.0.mmc/natives Traits: traits legacyLaunch traits texturepacks traits noapplet Libraries: /home/dom/.local/share/multimc/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar /home/dom/.local/share/multimc/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar /home/dom/.local/share/multimc/libraries/org/lwjgl/lwjgl/lwjgl/2.9.4-nightly-20150209/lwjgl-2.9.4-nightly-20150209.jar /home/dom/.local/share/multimc/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.4-nightly-20150209/lwjgl_util-2.9.4-nightly-20150209.jar /home/dom/.local/share/multimc/instances/bta.updater.v3.0.mmc/.minecraft/bin/minecraft.jar Native libraries: /home/dom/.local/share/multimc/libraries/net/java/jinput/jinput-platform/2.0.5/jinput-platform-2.0.5-natives-linux.jar /home/dom/.local/share/multimc/libraries/org/lwjgl/lwjgl/lwjgl-platform/2.9.4-nightly-20150209/lwjgl-platform-2.9.4-nightly-20150209-natives-linux.jar Jar Mods: installer (76046775-c048-4d45-b543-fb7423225b6c.jar) Params: --assetsDir /home/dom/.local/share/multimc/assets Window size: 854 x 480 Java Arguments: [-Dfml.ignoreInvalidMinecraftCertificates=true, -Dfml.ignorePatchDiscrepancies=true, -Xms512m, -Xmx1024m, -Duser.language=en] Minecraft process ID: 57031 Using onesix launcher. Could not find Minecraft path field. Assets Directory in args: /home/dom/.local/share/multimc/assets Run Directory: /home/dom/.local/share/multimc/instances/bta.updater.v3.0.mmc/.minecraft Found instance in run directory: /home/dom/.local/share/multimc/instances/bta.updater.v3.0.mmc No launcher directory provided, using directory above assets Launcher Directory: /home/dom/.local/share/multimc Check config file: /home/dom/.local/share/multimc/multimc.cfg [OUT] Installer Version: 0.1 [OUT] Installer Directory: '/home/dom/.local/share/multimc/instances/bta.updater.v3.0.mmc/.bta-installer' [OUT] Offline Mode: false [OUT] Operating System: Linux [OUT] Java Version: 1.8.0_482 [OUT] Downloading: https://downloads.betterthanadventure.net/bta-installer/versions.json [OUT] !![Fatal]!Failed to invoke the Minecraft main class: [ERR] java.lang.RuntimeException: Downloading 'https://downloads.betterthanadventure.net/bta-installer/versions.json'! [ERR] at b100.installer.Download.download(Download.java:143) [ERR] at b100.installer.Download.downloadAsString(Download.java:60) [ERR] at b100.installer.Download.downloadAsJson(Download.java:67) [ERR] at b100.installer.updater.Updater.searchAvailableUpdates(Updater.java:142) [ERR] at b100.installer.Main.main(Main.java:35) [ERR] at net.minecraft.client.Minecraft.main(Minecraft.java:8) [ERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [ERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [ERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [ERR] at java.lang.reflect.Method.invoke(Method.java:498) [ERR] at org.multimc.onesix.OneSixLauncher.legacyLaunch(OneSixLauncher.java:164) [ERR] at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:273) [ERR] at org.multimc.EntryPoint.listen(EntryPoint.java:143) [ERR] at org.multimc.EntryPoint.main(EntryPoint.java:34) [ERR] Caused by: java.io.IOException: Server returned HTTP response code: 403 for URL: https://downloads.betterthanadventure.net/bta-installer/versions.json [ERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [ERR] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) [ERR] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [ERR] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) [ERR] at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1969) [ERR] at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1964) [ERR] at java.security.AccessController.doPrivileged(Native Method) [ERR] at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1963) [ERR] at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1533) [ERR] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1517) [ERR] at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:268) [ERR] at b100.installer.Download.download(Download.java:110) [ERR] ... 13 more [ERR] Caused by: java.io.IOException: Server returned HTTP response code: 403 for URL: https://downloads.betterthanadventure.net/bta-installer/versions.json [ERR] at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1919) [ERR] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1517) [ERR] at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:3084) [ERR] at java.net.URLConnection.getHeaderFieldLong(URLConnection.java:629) [ERR] at java.net.URLConnection.getContentLengthLong(URLConnection.java:501) [ERR] at sun.net.www.protocol.https.HttpsURLConnectionImpl.getContentLengthLong(HttpsURLConnectionImpl.java:416) [ERR] at b100.installer.Download.download(Download.java:106) [ERR] ... 13 more [OUT] Exiting with -1 Process exited with exit code 255 (0xff). Please note that usually neither the exit code, nor its description are enough to diagnose issues! Always upload the entire log and not just the exit code. MultiMC: Log upload triggered at: 05 Apr 2026 08:18:00 -0500